Homologous structures. Analogous organs perform similarly to homologous structures; both share a common embryonic origin.
These two structures are not comparable. Although they are not identical, a butterfly's wings and a bird's wings are similar. Serial homologous refers to a circumstance where two or more parts or components are substantially the same in terms of construction but have been altered to serve distinct purposes. Bat wings and whale flippers are two examples of this. This commonality is crucial because it indicates that humans and bats have a recent common ancestor during evolution. For instance, the bones in a human arm are similar to those in a whale's front flipper.
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Answer for you
recall what you have learned about continental drift and plate tectonics. sort the information into the correct categories.
pangaea broke and spread apart.
landforms result from moving plates lithosphere is made of large pieces.
plates move and interact.
continents were once one landmass.
The correct order is:
Continental Drift:
-Pangaea broke and spread apart
-continents were once one land mass
Plate Tectonics
-Landforms result from moving plates
-plates move and interact
-Lithosphere is made of large pieces
One of the earliest hypotheses put up by geologists for how continents could migrate through time is called continental drift. Gondwana, an early "supercontinent," is seen on this map. It subsequently dispersed to become the continents we see today. Similar creature fossils discovered on wildly dissimilar continents supported the ground-breaking notion of continental drift.
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suppose that a snake handler bitten by a par- ticular venomous snake species was treated with antivenin. why might the same treatment for a second such bite have a harmful side effect?
A significant immunological reaction could be brought on by a further injection if the handler built up immunity to the anti-venin proteins.
What does immunity mean?a method by which the immune system defends the body from an infectious disease. There are three different kinds of immunity: innate, adaptive, & passive. Barriers that prevent hazardous chemicals from reaching the body include mucous membranes and the skin as part of innate immunity.
Why is it significant?We are guarded against these hazardous bacteria as well as some diseases by our innate immunity, a network of complex bodily stages and channels. When it detects invading forces like bacteria, viruses, or parasites, it acts right away. Adaptive and inborn immunity are both present in humans.
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what is the best biological term to describe a chain of enzyme controlled reactions? a. catalysed reactions b. metabolic pathways. enzyme metabolism d. phosphorylation pathway
Answer:
The best biological term to describe a chain of enzyme controlled reactions is metabolic pathways. Metabolic pathways are a series of enzyme-catalysed reactions that convert a substrate into a product. These pathways are essential for the metabolic processes of living organisms, and are usually regulated by a complex network of enzymes and other regulatory proteins. Phosphorylation pathways involve the transfer of phosphate groups from one molecule to another, and enzyme metabolism is a term used to describe the chemical changes caused by enzymes.
the result of mitosis with cytokinesis is that the daughter cells end up with the same number of chromosomes that the parent cell had. another potential way to maintain the number of chromosomes would be to carry out cell division first and then duplicate the chromosomes in each daughter cell. do you think this would be an equally good way of organizing the cell cycle?
Mitosis results in the offspring cells having the same number of chromosomes as the parent cell. Cell division followed by chromosomal duplication in each daughter cell is another strategy for maintaining the number of chromosomes.
We are left with two new cells when cytokinesis is complete, each of which has a full complement of chromosomes that are identical to those of the mother cell. The daughter cells can now start their own cellular "lives" and, depending on what type of adult they choose to become, may go through mitosis to continue the cycle. Mitosis divides a parent cell into two identical daughter cells, each of which has the same amount of chromosomes.
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A native bird feeds on brown beetles. The diagram below shows a population of beetles over several generations. Explain what most likely happened.
(2.16 Unit Test: Evolution - Part 2)
One paragraph
A native bird feeds on brown beetles and there is a decrease in the population of beetles over several generations because since the native bird prefers brown beetles for food giving blackbeetles a chance to reproduce and grow their population more because there is more resources.
What is Population?This is referred to as the total number of organisms in an area over a given period of time.
In this scenario, we were told that the beetle population decreased because the native bird prefers them for food and it also led to them reproducing more due to the availability of resources in the form of food.
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Part B - Model design: Building a life cycle model A researcher named Tony Hawkins and his colleagues were interested in determining the environmental impacts of ICEVs and EVs. Their goal was to provide consumers with the information they need to make informed decisions. Furthermore, il governments knew the impact ICEVs and EVs had on national CO, omissions, they could enact policies to better regulate CO2 emissions. in order to understand the true CO2 costs and benefits of ICEVs and EVs, Hawkins conducted a product life cycle assessment. A life cycle assessment is a method used to evaluate the environmental impact of a produce the stages of its life from resource extraction to manufacturing, distribution, use, and final disposal. Hawkins evaluated a number of environmental impacts including water toxicity, metal deposition, and more. In this active concentrate on his evaluation of CO2 emissions. Below is a list of variables that Hawkins used in the life cycle assessment model. Sort each of the variables depending on if it is associated with ICEVS, EVs, or both.
The variables used by Hawkins in the life cycle assessment model, like resource extraction and refining of fossil fuels, manufacturing of EV batteries and EVs, and distribution and use of electricity for charging EV batteries, are sorted into ICEVS, EVs, or both.
ICEVs:
Resource extraction and refining of fossil fuels
Manufacturing of ICEVs
Distribution and use of gasoline and diesel fuel
Emissions from the tailpipe of ICEVs
End-of-life disposal and recycling of ICEVs
EVs:
Resource extraction and refining of minerals and metals used in EV batteries
Manufacturing of EV batteries and EVs
Distribution and use of electricity for charging EV batteries
Emissions from power generation for EV charging
End-of-life disposal and recycling of EV batteries and EVs
Both:
Emissions from transportation of raw materials and finished products
Emissions from the construction and maintenance of roads and charging infrastructure
Emissions from end-of-life disposal and recycling of EV batteries and ICEVs
Emissions associated with the use phase of the vehicles, such as emissions from the tailpipe of ICEVs and emissions from power generation for EV charging
For ICEVs, the variables include the resource extraction and refining of fossil fuels, which are used as fuel for internal combustion engines. The manufacturing of ICEVs and the distribution and use of gasoline and diesel fuel are also associated with ICEVs. Tailpipe emissions, which are the emissions that come out of the exhaust pipe of the vehicle, are specific to ICEVs, as EVs have no tailpipe emissions. End-of-life disposal and recycling of ICEVs also have an environmental impact.
For EVs, the variables include the resource extraction and refining of minerals and metals used in EV batteries, the manufacturing of EV batteries and EVs, the distribution and use of electricity for charging EV batteries, and the emissions from power generation for EV charging. The end-of-life disposal and recycling of EV batteries and EVs also have an environmental impact.
Lastly, some variables are associated with both ICEVs and EVs, such as emissions from transportation of raw materials and finished products, the emissions from the construction and maintenance of roads, and charging infrastructure. Both ICEVs and EVs also have emissions associated with end-of-life disposal and recycling and emissions associated with the use phase of the vehicles, such as emissions from the tailpipe of ICEVs and emissions from power generation for EV charging.
The goal of this life cycle assessment is to understand the true CO2 costs and benefits of ICEVs and EVs, so the researcher can provide consumers with the information they need to make informed decisions and governments can enact policies to better regulate CO2 emissions.
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TRUE/FALSE. Genotype-by-environment interaction means that genetic and environmental influences may interact or contribute to the phenotypic outcomes in unpredictable ways.'
A phenotypic outcome may be affected in unforeseen ways by both genetic and environmental factors, which is known as genotype-by-environment interaction.
Examples of geneticsStudies of genes are done in genetics. Information is transmitted from one generation to the next through our genes. In contrast to their sibling, who has dark hair like their father, one child has blonde hair like their mother due to genetics.
What is a genetic explanation?The scientific study of genetics examines genes and heredity, or the process by which specific characteristics or traits are passed from parents to children as a result of variations in DNA sequence. A gene is an area of DNA that provides instructions for creating one or more molecules that support bodily function.
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Which of the following is not a method of chromosomal sex determination that occurs in nature?
a. In birds, the mother's sex chromosomes determine the sex of the offspring.
b. In sea turtles, eggs laid in hot sand become females and eggs laid in cooler sand become males
c. In humans, the presence of a Y chromosome makes an individual male, even if he also possesses two X chromosomes.
d. In bees, the eggs that the queen allows to be fertilized become females and the eggs she doesn't fertilize become males.
e. All of the above are naturally occurring examples of sex determination.
All of the following options are a method of chromosomal sex determination occurring in nature: (a) In birds, the mother's sex chromosomes determine the sex of the offspring; (b) In sea turtles, eggs laid in hot sand become females and eggs laid in cooler sand become males; (c) In humans, the presence of a Y chromosome makes an individual male, even if he also possesses two X chromosomes; and, (d) In bees, the eggs that the queen allows to be fertilized become females and the eggs she doesn't fertilize become males.
Chromosomes are the most compactly packaged form of genetic material. It is comprised of DNA and histone proteins. The chromosome is the form of genetic material that gets transferred from parent cell to daughter cell during cell division.
X chromosomes belong to the category of sex chromosomes that give the male and female identity in humans and various other organisms. Human females posses two X chromosomes while posses only one along with one Y chromosome.
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the black colonies growing on the surface of this cystine-tellurite agar plate, with dark brown halos surrounding the colonies, is one of the characteristics of:
This cystine-tellurite agar plate's surface is covered in black colonies that have dark brown haloes around them. This is one example of colony morphology.
Describe morphology and provide instances.The study of morphology explores how individual linguistic building blocks, or morphemes, can combine or stand alone to produce a variety of meanings. For instance, if you take the morpheme cookie and add the suffix -s, you generate a new word called cookies, the plural version of which has a slightly different meaning than the singular form.
Simple definition of morphologyMorphology is the research of words & their constituent elements. According to definition, morphemes are the smallest significant units of meaning, together with prefixes, suffixes, and base words. Phonics in both reading and writing depend on morphemes.
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the denaturing solution contains the detergent sodium dodecyl sulfate (sds) and the reducing agent 2-mercaptoethanol. why is it necessary to use these compounds in this procedure? what do they do to prepare the proteins for running a page gel?
Sodium dodecyl-sulfate polymeric agarose gel (SDS-PAGE) is frequently used to separate complicated protein mixtures at high resolution. The peptides that will be subjected to electrophoresis are first denatured by the technique.
An electrophoresis is what?A laboratory procedure called electrophoresis is used to divide DNA, RNA, or protein molecules according to their size and electrostatic current. The molecules are moved by an electric current thru a gel or other medium.
RNA: what is it?All living cells contain ribonucleic acid, a nucleic acid that resembles DNA in structure.
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gattaca what happens to the embryos in the clinic that are not implanted? is that right? what is the difference between that and abortion?
Because the embryo cannot build a blood supply from the uterine lining if it does not implant, it stops growing. The cells die and are reabsorbed silently. Every cell in the body dies, and the body reabsorbs them quietly and efficiently.
It's a question that fertility patients initially encounter in the form of pre-IVF paperwork, which outlines the four options for "embryo disposition," which include donating the embryo to another couple, donating it to science, disposing of it, and keeping it frozen.
However, not all fertilized eggs implant. If the egg does not fertilize or implant, the woman's body excretes both the egg and the endometrium. This shedding is what causes a woman's menstrual period to bleed.
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which of the following is not a way in which an enzyme can speed up the reaction that it catalyzes?
a) A shape change of the active site occurs when the substrate binds and enables the reaction.
b) An active site puts the substrates in the positions that favor the reaction.
c) Entering an active site brings substrates in close physical proximity.
d) Active sites of some enzymes attract water, keeping it in the reaction.
e) They lower the activation energy.
d) Active sites of some enzymes attract water, keeping it in the reaction. The substrate is a molecule that fits into a specific area on each enzyme molecule known as the active site.
The active site can generate heat from the surrounding area, increasing the substrate's energy content. The environment cannot be heated by an enzyme to hasten a process. Our bodies include enzymes that act as catalysts to quicken reactions by reducing the activation energy required to initiate a reaction. By reducing the activation energy, enzyme quickens the reaction. The difference between the reactants' and the transition state's free energies is known as activation energy. Enzymes reduce activation energy and traverse the transition state to finish a reaction.
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thyroxine activity is dependent on , a trace mineral that regulates basal metabolic rate, and low amounts can result in a goiter. a. zinc b. iodine c. selenium d. iron
Thyroxine activity is dependent on b. iodine, a trace mineral that regulates basal metabolic rate and low amounts can result in goiter.
What do you understand by goiter?Abnormal growth of the gland beneath the Adam's apple that resembles a butterfly (thyroid) is known as goiter. A small goiter without symptoms might not require treatment. Surgery or medicines may be required in some circumstances.
Inflammation of the thyroid gland or a lack of iodine are two typical causes of a goiter. Not every goiter is symptomatic. Swelling and cough are some possible symptoms. Rarely, symptoms may include problems breathing or constriction in the throat.
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suppose scientists succeeded in developing a successful malaria vaccine. india, the 2nd most populated country in the world, gets access to this vaccine and population explodes, until local food supplies begin to dwindle and starvation plagues the largest cities in india. which evolutionary scientist would predict this kind of change in population: darwin, lamarck, lyell, or malthus? comment on the accuracy of this theory on this case.
malthus is the evolutionary scientist would predict this kind of change in population. he said india, the 2nd most populated country in the world, gets access to this vaccine and population explodes, until local food supplies begin to dwindle and starvation plagues the largest cities in india.
Malthusianism is the belief that population growth is potentially exponential while food supply or other resources grow linearly, eventually lowering living standards to the point of population extinction. A Malthusian catastrophe (also known as a Malthusian trap, population trap, Malthusian check, Malthusian crisis, Malthusian spectre, or Malthusian crunch) occurs when population growth outpaces agricultural production, resulting in famine or war and poverty. Such a disaster will invariably force the population to "correct" back to a lower, more easily sustainable level (quite quickly, due to the potential severity and unpredictability of the mitigating factors involved).
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Good land and production practices can help increase greenhouse gas emissions. Please select the best answer from the choices providedTrueFalse
Good land and production practices cannot help increase greenhouse gas emissions.
Greenhouse gas emissions are the gases that trap heat in the atmosphere, thereby warming the planet. Greenhouse gas emissions are primarily caused by human activities such as burning fossil fuels, deforestation, and agriculture. Good land and production practices can actually help reduce greenhouse gas emissions.
For example, conservation agriculture practices, agroforestry, and sustainable land management practices can help sequester carbon in the soil, reducing the amount of carbon dioxide in the atmosphere.
Similarly, sustainable livestock management, reducing food waste, and increasing the use of renewable energy sources can also contribute to reducing greenhouse gas emissions.
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Weight-bearing portion of vertebra
A. body
B. disc
C. pedicle
D. lamina
which part of a neuron transmits an electrical signal to a target cell?
Axon is a part of a neuron that transmits an electrical signal to a target cell.
A neuron sending a sign (i.e., a presynaptic neuron) releases a chemical called a neurotransmitter, which binds to a receptor on the surface of the receiving (i.e., postsynaptic) neuron. Neurotransmitters are launched from presynaptic terminals, which may department to communicate with several postsynaptic neurons.
Nerve cells generate electric alerts that transmit information. even though neurons are not intrinsically correct conductors of electricity, they have got advanced problematic mechanisms for generating electrical alerts primarily based on the go with the flow of ions throughout their plasma membranes.
The dendrite is the part of the neuron that receives alerts. Dendrites are extensions of the neuron and they surround the cell frame, which is wherein the nucleus is positioned. Neurotransmitters are chemical messengers despatched between cells, and those messengers bind to precise sites at the dendrite.
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how are some protists able to live in air?
Some protists are able to live in air by possessing various adaptations that allow them to survive in this environment. For example, some protists have a protective coat of mucilage or a thick cell wall that prevents desiccation, or drying out, in the air. Others have developed the ability to move quickly, such as through the use of flagella or cilia, which allows them to move away from adverse conditions. Additionally, some protists are able to form spores, which are resistant structures that can survive in harsh environments, including in the air. These spores can later germinate and develop into new individuals when conditions become more favorable.
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kallman syndrome is a disease in which gonadotropin-releasing hormone producing neurons fail to migrate from the olfactory area to the hypothalamus during embryonic development. which endocrine axis is disrupted in individuals with kallman syndrome?
Thyrotropin-releasing hormone is released by the hypothalamus, thyroid stimulating hormone is released by the pituitary, and thyroid hormones T3 and T4 are released by the thyroid gland. Individuals with Kallman Syndrome will have a disruption in this endocrine axis.
Kallmann Syndrome is characterized by delayed or absent puberty as well as a poor sense of smell. This condition is a type of hypogonadotropic hypogonadism, which is caused by a lack of product of certain hormones that regulate sexual development. These hormones are typically produced in the hypothalamus, a region of the brain. Males with hypogonadotropic hypogonadism constantly have a undescended testes( cryptorchidism). Most affected individualities don't develop secondary coitus characteristics during puberty, similar as facial hair growth and voice heightening in males, the launch of yearly ages( period) and bone development in ladies, and a growth spurt in both relations.
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which part of a scientific manuscript is often the shortest, but most important section? question 29 options: introduction results discussion methods
The scientific abstract will be the last piece to be prepared, but it is the most crucial because readers typically read it first and use the information in it to decide if they want to continue reading the entire work.
The data gathered during the experiment are included in the results section. The core of a scientific publication is the results section. Much of the significant data in this section may be presented as tables or graphs. Scientific papers must follow a predetermined format, with the identical parts and headings used in all publications. The parts of the scientific manuscript are shown below; a heading for each section should be indicated by a (H). Title. Your title should describe the content of the work while also stating the hypothesis. A manuscript is indeed a written, typewritten, or word-processed document that the researcher submits to a publication. To share their original concepts and ground-breaking discoveries with the academic and the general public, researchers painstakingly draught articles.
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Which of the following kinds of organisms are best adapted to habitats that are frequently subject to unpredictable and severe environmental fluctuations?tropical rain forest
r-selected organisms
cryptic coloration
shallow root systems
The r-selected organisms are better suited for environments that frequently experience extreme and unpredictable environmental swings.
The idea of K- and r-selected species had been successfully applied to population research during the second half of the 20th century. The idea applies to a species' habitat, behavior, and reproductive techniques as well.
R-selected species, as opposed to K-selected species, have a lot of little offspring (hence their r designation). In unexpected or dynamic circumstances, this tactic is frequently used. R-selected animals do not provide long-term parental care, and the young are generally developed and self-sufficient upon birth. Marine animals like jellyfish and plants like dandelion are examples of r-selected species. Small dandelion seeds travel great distances in the wind, and several seeds are produced at once to make sure that at least part of them make it to a friendly environment. Given their little energy content, seeds have limited chance of surviving when they fall into hostile settings. Be aware that the amount of energy a seed has stored within it does not guarantee its survival.
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If a consumer lose 70% of the 2000J energy in their food as a waste heat and 20% in their waste products. Calculate how many joules this is
Answer:
see below for more steps
Explanation:
If a consumer loses 70% of the 2000J energy in their food as waste heat, that would be 70/1002000 = 1400 J
And if 20% in their waste products, that would be 20/1002000 = 400 J
So the total amount of energy lost as waste heat and in waste products is 1400 J + 400 J = 1800 J
The cell body of a neuron is housed in the spinal cord, and its axon travels all the way to the effector it controls. Is this an autonomic neuron or a somatic motor neuron? What is the effector?
The cell body of a neuron is housed in the spinal cord, and its axon travels all the way to the effector it controls. It is a somatic motor neuron with an affector that innervates skeletal muscles.
Neurons are the structural and functional units of nerve cells that form a nervous system consisting of cell bodies, nerve fibers, and their sheaths. Neurons function to receive stimuli from the environment through dendrites and transmit stimuli to the axons through the cell body.
The somatic nervous system is a system that works and controls the movements of the limbs that we are aware of. This nervous system carries information to and from the central nervous system. An example of this nervous system is for example the command to move the hand to avoid heat, Nerve cells will send impulses to the central nervous system and the central nervous system will continue to stimulate the axons to intervene in the skeletal muscles so that the hands move.
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what can you say about the structure of each of their cell walls as a result of their staining?
The structure of a cell wall can be determined by staining it with different dyes. Different dyes will bind to different components of the cell wall, and the resulting color can reveal information about the structure of the cell wall.
Gram-positive bacteria have a thick peptidoglycan layer in their cell walls. When stained with crystal violet and iodine, the peptidoglycan layer will retain the dye, resulting in a purple color.
Gram-negative bacteria have a thinner peptidoglycan layer and an outer membrane containing lipopolysaccharides. When stained with crystal violet and iodine, the thinner peptidoglycan layer will not retain the dye, and the outer membrane will not be affected. The result is that the cell appears pink or red.
In summary, the staining of cell walls with crystal violet and iodine can be used to differentiate between Gram-positive and Gram-negative bacteria. Gram-positive bacteria will appear purple, while Gram-negative bacteria will appear pink or red.
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Krista is a softball catcher in Texas. Which of the following is NOT one of the key strategies Krista would use to prevent excessive increases in body temperature and heat disorders
Dressing in several thin layers of clothes not one of the key strategies Krista would use to prevent excessive increases in body temperature and heat disorders.
Your body overheats, which frequently occurs as a result of persistent physical exertion in warm locations or extended exposure to those circumstances. This condition is referred to as heatstroke. The most serious sort of heat injury is heatstroke, which can occur when your body temperature reaches 104 F (40 C) or higher. The condition is especially common in the summertime. The medical word for a very high body temperature is hyperthermia, which is sometimes referred to as overheating. The reverse of that is hypothermia, which happens when your body is too cold. Hyperthermia occurs when the body creates or absorbs more heat than it is able to release. An individual's body temperature is 98.6 degrees Fahrenheit on average.
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how would a pedigree for a sex linked recessieve trait be different from a pedigree for an autosomal
Pedigrees with autosomal recessive traits will indicate an equal number of affected males and females, but pedigrees of X-linked recessive traits will reveal that the majority of affected individuals are male.
Pedigree with autosomal recessive trait shows equal frequency of affected males and females, while kindreds with X-linked recessive trait show that most affected individuals are male. All females affected by the X-linked recessive trait have an affected father. Also, a mother with an X-linked trait can have an affected son regardless of the father's genotype, but both parents must be carriers. For example, for X-linked recessive traits, males are affected much more often than females.For autosomal traits, both males and females can be affected equally (usually in equal proportions).
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what is the genus of plant that is easily identified by having no true leaves, dichotomous branching as well as lobed sporangia (usually yellow in color).
Psilotum is the genus of plant that is easily identified by having no true leaves, dichotomous branching as well as lobed sporangia (usually yellow in color).
Psilotum is a whisk fern genus. They are a kind of vascular plant. They lack real stems and true leaves; their stems contain the conducting tissues. They feature several branching stems and a three-lobed synangium. Synangia are sporangia that have merged and generate spores. They have rhizomes that generate rhizoids and aid in the anchoring of the psilophyte sporophyte.
Psilotum is referred to as a living fossil due to its similarity to an old line of primitive vascular plants reaching back 400 million years. It is a member of the plant division Psilophyta, the order Psilotales, and the family Psilotaceae.
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Dark colored mice are present in the light sandy desert because____?
Meselson and Stahl designed an experiment that would allow them to discern whether DNA replication occurs in a dispersive, semiconservative, or conservative manner.
They started with E. coli that had been growing for many generations in medium containing 15N.
They then transferred the bacteria into medium containing only 14N, and allowed the bacteria to undergo two rounds of DNA replication.
After each round of replication, the scientists performed density-gradient centrifugation of the DNA.
The scientists reasoned that each of the three models would predict different DNA banding patterns after the two rounds of replication.
Can you identify the banding patterns predicted by each model after the first round of replication?
Drag the test tubes to the appropriate locations in the table to show the banding patterns that each model predicts. Test tubes may be used once, more than once, or not at all.
For the replication of DNA, the semiconservative model is valid.
What is the proper replication model?Meselson and Stahl devised an experiment to find the best replication model. The following trends were anticipated by them:
Conservative model: in which the freshly generated dsDNA strands contain complete just N-14 in their nitrogenous base.
Semiconservative model: one strand of freshly generated dsDNA has N-15, while the other contains N-14.
Dispersive model: N-14 and N-15 are intermingled in both strands of newly produced dsDNA.
They discovered that one strand of newly generated dsDNA has N-15 whereas the other has N-14 after the first round of replication.
As a result, the semiconservative model is the proper model for DNA replication.
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the scientists of the bureau of animal industry helped discover that biting parasites called ticks were transmitting a disease to cows and causing texas cattle fever. this discovery later led to tracking down the cause of yellow fever and malaria. since the scientists made this connection, what conclusion is most likely about these diseases?
The scientists discovered connections between Texas cattle fever, malaria, and yellow fever. The most likely conclusion about these diseases is that "yellow fever and malaria are also diseases that are transmitted by biting parasites." Thus, the correct answer is A.
The discovery that ticks were transmitting a disease to cows and causing Texas cattle fever led to the realization that these diseases can be transmitted by biting parasites. This insight provided a crucial piece of information in the understanding of how these diseases are spread. It also set a precedent for further research on the transmission of other diseases, such as yellow fever and malaria.
Because the scientists found out that Texas cattle fever was transmitted by ticks, they began to investigate whether other diseases could also be transmitted by biting parasites. They found that yellow fever and malaria were also transmitted by mosquitoes. This conclusion is supported by the fact that both yellow fever and malaria are transmitted by the bite of a mosquito, which is a type of biting parasite. This finding supports the hypothesis that biting parasites like mosquitoes and ticks could be the common vector for transmitting diseases.
This question isn't complete. Here's how it should be written and how answer choices should be given:
The scientists of the bureau of animal industry helped discover that biting parasites called ticks were transmitting a disease to cows and causing Texas cattle fever. This discovery later led to tracking down the cause of yellow fever and malaria. Since the scientists made this connection, what conclusion is most likely about these diseases?
A. Yellow fever and malaria are also diseases that are transmitted by biting parasites. B. Cows are the source for many diseases, including texas cattle fever, yellow fever, and malaria. C. These diseases pose a risk because they can be found in contaminated meat. D. Texas cattle fever could later develop into yellow fever if it was passed to a human.The correct answer is A.
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