The theory of evolution describes how a population's ability to adapt its genetic composition in response to members' differing rates of reproduction to create new species.
What is the creation of a new species known as?
Speciation is the process by which new plant or animal species are developed. When a group within a species separates from other members of its species and evolves its own special traits, this is known as speciation.
The process of evolution causes a population's genetic makeup to change over time.
Therefore, A new species changed genes, and novel features can arise as a result of an organism's adaptations to its environment.
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Black fur (b) is dominant to white fur (b) in guinea pigs. An f1 cross was conducted and resulted in 100% heterozygous guinea pigs (bb). What is the genotypic ratio outcome of the f2 generation?.
Answer: 1:2:1 or 3:1 (3 black fur 1 white)
Explanation:
you walk in the forest and see a tiger at close range. as a result high levels of epinephrine are released. what are the reactions that allow you to run away from the tiger?
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Describe how science can have an effect on society.
Answer:
The science is very important in the evolution and the improvement of the lifestyles of the human being. The researches in the sciences help in providing conclusions, which are helpful in day to day life. The technologies and innovations make life easier by providing various tools and techniques. Also, the researches in the science provide chance to improve lifestyle by providing scientific knowledge to improve the ethics, education, justice, aesthetics etc.
Explanation:
Brainliest please!
Select the correct answer from each drop-down menu.
The lac operon in E.coli regulates genes that code for enzymes required for breakdown of lactose. The lac operon is
operon in that is activated in the presence of
Answer:
The lac operon in E.coli regulates genes that code for enzymes required
for breakdown of lactose. The lac operon is an inducible operon that is
activated in the presence of lactose.
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describe how th morgan figured out the white gene (that codes for eye color in fruit flies) was located on the x chromosome. to do this, trace the logic of the crosses he did.
Morgan figured out two crosses.
In the First cross he used true phenotype of red-eyed and white-eyed flies , The flies with White eyes reappeared in the next generation, but only in males. While all females have red-eyes, and among the males, the ratio of red: white in ration whites eyes is 1:1.
In the Second cross he used cross between red female and white eyed male flies. This trait Appear in both sexes in the ratio red: white of 1:1.
In the experiment Morgan observed that the mutation was inherited differently by male and female flies. Morgan concluded that the eye color gene must be located on the X chromosome.
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which of the following is a characteristic of glycogen? a. it helps sustain the body's cellular activities. b. it is not released from the liver in any case. c. it is stored in adipose cells. d. it represents a three-day supply of glucose. e. it is stored for the body's amino acid needs.
Glycogen is a polymer of glucose. It is required for the body's ongoing need for glucose to sustain work. It represents a three-day supply of glucose. Thus, the correct option is D.
What is Glycogen?Glycogen molecule is a multi-branched polysaccharide of glucose which serves as a form of energy storage in the body of animals, fungi, and bacteria. The structure of glycogen represents the main storage form of glucose in the body, it is used to produce glucose and hence energy in the form of ATP to do work.
The body mainly uses the glycogen stored in the liver to help regulate blood glucose (sugar) levels. Body normally regulates the blood glucose level carefully primarily with the hormones such as glucagon and insulin.
Therefore, the correct option is D.
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What object on earth is thousands of kilometers?
Maybe i am incorrect- but the only thing i can quite place my finger on for something THOUSANDS of kilometers is the solar system and or earth itself...Another thought that came to mind was water-there's about 1,386,000,000 cubic kilometers of water on earth.
This type of activity increases heart rate and uses oxygen to provide energy as atp.
Proteins, lipids, and carbohydrates are broken down by oxygen during aerobic exercise to produce ATP. This pathway operates a little more slowly than anaerobic pathways but can produce more ATP since it relies on the circulatory system to deliver oxygen to working muscles. Aerobic, which means "with air," refers to the process by which the body converts oxygen into energy. This usually refers to any exercise session that lasts more than two minutes. "Steady state" exercise is defined as continuous aerobic activity. Anaerobic means "without air" and describes the body's capacity to produce energy.
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5. Why is it important to flame neck of the tubes immediately after uncapping and before recapping the tubes?.
To prevent pathogen sample contamination or transmission.
Why is the loop flamed both before and after use?Why should the loop be flamed before use? after usage? Before usage, flame it to eliminate any bacteria on the loop that could contaminate your culture. Any bacteria from your bacterial transfer operations that were left on the loop are destroyed by flaming after use.
Why is it crucial to torch the tube's mouth before and after each injection?Flame the culture tube's lip very briefly. As a result, a convection current forms, forcing air out of the tube and keeping airborne contaminants out. Insert the inoculating loop and remove a loopful of inoculum while maintaining the culture tube's inclination.
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When mutated cells ignore checkpoints, they reproduce uncontrollably, forming tumors. During which stage of the cell cycle does the cell divide into two cells?.
A cell divides into two cells during the M stage (mitosis) of the cell cycle.
In contrast to meiosis, which creates four different daughter cells, this type of cell division includes the parent cell producing two identical daughter cells.
Two main processes are involved in cell division, also known as the mitotic phase, or M phase, which produces the production of two new cells by dividing the cell's copy DNA and cytoplasm.
An organism's development is aided by mitosis. Mitosis is the process of asexual reproduction in single-celled organisms.
Damaged tissues can be replaced with new ones thanks to. When the surrounding cells cannot sense the damaged cells, mitosis starts in those cells. The cells that are dividing eventually overlap and cover the harmed cells.
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Answer: M
Explanation: its M source trust me bro
Some dna sequences must be in cis to interact, while others can carry out their regulatory function in trans. Which pair of dna sequences are capable of functioning together in cis?.
The two DNA sequences can work together to activate the cis lacI gene or lacO operator.
For a girl, what does trans mean?A trans woman is indeed a female who was given a male gender identity at birth. Trans women identify as females, may encounter gender dysphoria, or may transfer; this process frequently entails hormone replacement and occasionally sexual reassignment surgical intervention, which can ease symptoms of gender dysphoria and put an end to them.
Who is deemed to be trans?Those whose transgender identity, gender expression, or behavior do not correspond to what is commonly associated with sex to which they were given at birth are referred to as transgender.
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In noncyclic photophosphorylation, electrons flow in a one-way path from water to?.
In noncyclic photophosphorylation, electrons flow in a one-way path from water to NADP+.
Photophosphorylation refers to the phosphorylation of ADP to produce ATP during the photosynthesis process. Under aerobic and anaerobic conditions, cyclic photophosphorylation takes place, with sunlight serving as the primary source of energy for living things. The universal energy unit of life is a phosphate molecule called ATP, which is produced by all organisms. In photophosphorylation, protons are pumped across a biological membrane using light energy. This process is mediated by the movement of electrons through an electron transport chain. Proton gradient energy is stored in this way. ATP is produced from ADP and inorganic phosphate as the protons return through the enzyme ATP synthase. The Calvin cycle relies on ATP to help with the production of carbohydrates from carbon dioxide and NADPH.
Cyclic photophosphorylation is the name given to the photophosphorylation procedure that leads to the cyclic movement of electrons during the synthesis of ATP molecules. In this procedure, plant cells only convert ADP to ATP to provide the cells with immediate energy. Non-cyclic photophosphorylation is the name given to the photophosphorylation procedure that causes the electrons to move non-cyclically in order to synthesise ATP molecules using the energy from excited electrons supplied by photosystem II.
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What event most directly triggers the release of calcium from the terminal cisternae?.
Action potential propagation down the T tubule most directly triggers the release of calcium from the terminal cisternae.
The action potential travels down the t-tubules and excites the sarcoplasmic reticulum, causing calcium to be released. When calcium binds to troponin, it causes conformational changes in the sarcomere. As a result, the interaction of the sarcomere's thick and thin filaments causes muscle contraction. As the action potential travels down the T-tubules in cardiac muscle cells, it activates L-type calcium channels in the T-tubular membrane. Calcium enters the cell when the L-type calcium channel is activated.
A sarcomere is a myocyte's basic contractile unit. Sarcomeres are made up of two main protein filaments (thin actin and thick myosin filaments), which are responsible for muscular contraction.
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What is textual form example?.
textual style "Textual form" refers to a text that is conveyed in alphabetical or other understandable characters using any support that allows for reading, recording, and reproduction of the text's information in tangible form.
Textual form refers to a text that is conveyed in alphabetical or other understandable characters using any support that allows for reading, recording, and reproduction of the text's information in tangible form.
This approach entails using a paragraph or a series of paragraphs to communicate data.
An inquiry commission's official report is often presented as text. An example would be that in 1999, out of a factory's total of 5,000 employees, 4,200 were Trade union members.
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blocking the brain gaba-a receptors can lead to blocking the brain gaba-a receptors can lead to amnesia. muscle spasms. excitotoxicity. seizures.
Sedation, hypnosis, anxiolytics, pain killers, & anticonvulsants are only a few of benzodiazepines' effects. It functions by amplifying the current that the GABA agonist causes.
What types of receptors are examples?Specific cell membranes structures that serve as receptors. They mostly consist of proteins that connect to ligands and activate the immune system. These receptors are found on a variety of immune cells, such as B cells, T cells, progenitors, & monocytes.
What substances comprise receptors?Receptors are chemical compounds made of proteins that are employed in pharmacology and biochemistry to receive & translate signals that could be incorporated onto biological systems.
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Please help and in 6th grade words
Give one example of a question that science would not be able to test. Then, explain how it could be changed into a testable question.
The example of a question that science would not be able to test is that a testable question is the one which can be tested on the basis of experimentation and a non-testable question is the one which cannot be tested experimentally.
What is the process of asking question to a 6th grade student?The process of asking question to a 6th grade student that 6th grade science teacher gives a test every 12 days and the math teacher gives a test every 9 days. Today, both the science and math are giving tests. We need to find In how many days will the science and math teachers both give tests on the same day again.
It's given that science teacher gives a test every 12 days and the math teacher gives a test every 9 days . In order to find the number of days after which they'll give test at same day , we will find LCM of 12 & 9 . i.e.
Therefore, The example of a question that science would not be able to test is that a testable question is the one which can be tested on the basis of experimentation and a non-testable question is the one which cannot be tested experimentally.
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(Translation)
(transcription)
is similar to the DNA process of replication, but only one strand of nucleotides is formed. DNA is used as a template to make messenger RNA (mRNA). The mRNA carries the genetic information from DNA to ribosomes in the cytoplasm.
(Translation)
(transcription)
is the process of converting the information in the mRNA into a sequence of amino acids that make proteins.
The answers include the following below:
Transcription is similar to the DNA process of replication, but only one strand of nucleotides is formed.Translation is the process of converting the information in the mRNA into a sequence of amino acids that make proteins.What is DNA?This is referred to as deoxyribonucleic acid and it is known as the genetic material of most living organisms and it ensures that traits are passed from the parent to the offspring during reproduction.
Transcription involves the making a copy of RNA from the DNA while translation involves creating proteins from an mRNA template.
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ANSWER ALL 3 PLEASE
The apparatus shown below measures the oxygen consumed by a small animal. As oxygen is consumed, the water droplet moves closer to the flask. Because carbon
dioxide is absorbed by the potassium hydroxide solution on the filter paper, it does not affect the results.
1. You are performing a lab in biology class to determine, quantitatively, if
temperature affects the rate of oxygen consumption by a small animal. You will be testing the oxygen consumption of the animal at 0°C, 15°C, and 30°C. Write a prediction about the relationship between oxygen consumption and temperature. (1 point)
2. Using this apparatus, or a similar one, write a procedure to test your
prediction. Procedures should be detailed, specific, and written in numbered point form. (2 points)
3. State the manipulated variable, responding variable, and at least two
controlled variables for this experiment. (2 points)
Answer: 0°C, 15°C, and 30°C. Write a prediction about the relationship between oxygen consumption and temperatur
Explanation: absorbed by the potassium hydroxide solution on the filter paper, it does not affect the results.
Mark places some cells from an onion skin on a microscope slide. He uses a freshwater solution to make the wet-mound slide. When he observes the cells under the microscope for an extended period of time, what is he most likely to see?.
Mark observes that the cells have dissolved, destroying the cell walls.
What is a Microscope?
A microscope is a device that produces enlarged images of small objects, allowing the observer to get an extremely close look at minute structures at a scale suitable for examination and analysis.
Although optical microscopes are the focus of this article, an image can be magnified using a variety of other wave forms, such as acoustic, X-ray, or electron beam, and received via direct or digital imaging, or a combination of these methods.
The microscope may produce a dynamic image (as with conventional optical instruments) or a static image (as with conventional scanning electron microscopes).
A microscope's magnifying power is a dimensionless ratio that expresses the number of times the object being examined appears to be enlarged. It is usually written in the form 10 (for an image magnified 10-fold),
Photography through a microscope can capture images of interest, a technique known as photomicrography.
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after our solar system began to form dust and gas combined into small bodies that formed the plants what are these small bodies called
what are the functions of sds in gel electrophoresis for estimating protein sizes? (check all that apply) group of answer choices
I and II is the correct answer
What is gel electrophoresis?Gel electrophoresis is a technique used in laboratories to molecularly separate mixtures of DNA, RNA, or proteins. it is a technique used to sort biological molecules according to size. The molecules to be separated are driven through a gel with tiny holes by an electrical field. By putting these molecules in a gel with tiny holes and applying an electric field across the gel, it is possible to separate the molecules. The negatively charged nature of DNA causes it to move toward the positively charged electrode when an electric current is supplied to the gel. Because shorter DNA strands pass through the gel more quickly than longer strands, the fragments are organized according to size.
The following list of fundamental processes for performing gel electrophoresis includes:
Pouring the gel first, getting your samples ready, the gel must be loaded, run, stained, and exposed to an electric field while doing so.
Using a technique called agarose gel electrophoresis, nucleic acid (DNA or RNA) fragments are separated according to their size
1.linearizes the protein
2.II by causing hydrogen bonds in proteins to be broken. gives proteins a general negative charge, limiting the effect of protein size
3.III on gel migration distance. allows the protein to be seen on the gel by intercalating between its amino acids.
Agarose gel electrophoresis is a form of electrophoresis used for the separation of nucleic acid (DNA or RNA) fragments based on their size.
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What is true about the chromosomes within the cells of a sexually reproductive organism?(1 point).
The correct option is B. A cell within the organism will have two sets of chromosomes, one from each parent, identical to the pair of chromosomes in all cells in the body.
What happens to chromosomes in organisms that reproduce sexually?When the two sexual gametes, one from the mother (ovum) and the other from the father (sperm) fuse, fertilization occurs, this generates the formation of the zygote that will later generate the fetus. Each of the gametes will have genetic material and a genetic recombination will be generated.
So, in reproduction there will be 23 pairs of chromosomes in each cell with half of the genes from each parent and a pair of sex chromosomes that tells us the sex of the individual.
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What is true about the chromosomes within the cells of a sexually reproductive organism?
A. A cell within the organism will have two sets of chromosomes, one from each parent, and each type of specialized cell has different genes
B. A cell within the organism will have two sets of chromosomes, one from each parent, identical to the pair of chromosomes in all cells in the body
C. A cell within the organism will have two genetically identical sets of chromosomes and every chromosome in the body will be genetically identical
D. Half of the cells from the organism will have chromosomes from one parent and the other half of cells will have chromosomes from the other parent
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Is an inherited condition that causes individuals to absorb and accumulate too much iron? hemochromatosis hematocrit absorption syndrome hyperferritosis reverse anemia
Hemochromatosis is an inherited condition that causes individuals to absorb and accumulate too much iron. Thus, the correct option for this question is A.
What is Inheritance?An inheritance may be defined as the process through which characters or traits are transferred from one generation to the next generation in the form of factors (genes).
Hereditary hemochromatosis is an inherited condition that significantly causes your body to absorb too much iron from the food that you may eat. This excessive amount of iron gets stored in your organs, especially your liver, heart, and pancreas and causes too many problems in the normal functioning of these organs.
Therefore, hemochromatosis is an inherited condition that causes individuals to absorb and accumulate too much iron. Thus, the correct option for this question is A.
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Which of these features is shared between eukaryotic and prokaryotic gene regulation?.
The transcriptional level controls gene expression in both prokaryotes and eukaryotes. Transcription factors, activators, and repressors regulate both methods. Genes in both prokaryotes and eukaryotes can be controlled to produce different gene products.
What is transcription?The process of creating RNA from DNA. Protein, which gives an organism its form, receives genetic information from DNA. The consecutive actions of transcription (turning DNA into RNA) and translation cause this information flow (RNA to protein). When a certain gene product is required at a specific moment or in a specific tissue, transcription takes place.Typically, just one strand of DNA is copied during transcription. The RNA molecules created are single-stranded messenger RNAs, and this is referred to as the template strand (mRNAs).The coding or sense strand refers to the DNA strand that would match the mRNA. Pre-mRNA is the first byproduct of transcription in eukaryotes (organisms with a nucleus).To learn more about transcription, refer to
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Table 5.3 Patterns and relationships between life expectancy and World Development Indicators
Pattern or trend that the graph
shows
World Development Indicator
5 What factors affect human health?
Relationship between geography
and health that the graph suggests
A variety of specific and general measures, including as per capita income, life expectancy, education levels, and the severity of poverty, can be used to determine how much a nation has evolved.
What are the top three factors that define a country's degree of development?The United Nations created the (HDI), a statistical metric (composite index), to evaluate the social and economic progress of nations throughout the world. The three human development indicators that are taken into account by the HDI are per capita income, education, and life expectancy.
Gross domestic product, or GDP, which measures the "output" or total market value of goods and services generated in the domestic economy over a specific time period, is the most comprehensive indicator of overall economic performance.
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a substance that provokes an immune response is called an a) immunoglobulin. b) antihistamine. c) antibody. d) antigen. e) allopath.
Antigen is a chemical that causes an immunological reaction.
What compounds elicit an immunological response?Antigens are molecules, typically proteins, that are present on the surface of bacteria, viruses, fungi, and cells. Antigens can also be made up of nonliving materials like poisons, chemicals, medications, and foreign objects (like splinters). Antigen-containing compounds are recognized by the immune system, which then attempts to destroy them.
What is the immunological reaction known as?The primary goal of the innate immune response is to stop the migration and spread of foreign pathogens within the body as soon as possible. The adaptive immune response is the second line of protection against external infections.
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Which functional area of the cerebrum is responsible for the ability to form words?.
The ability to form words is formed in Broca's area of the cerebrum, and due to the proper functions of this area, a person can make speech and express their thoughts. Broca's area is responsible for this.
What are the various parts of the brain?The brain has different parts, such as the forebrain, which is further divided into the cerebrum, diencephalon, etc., and these parts regulate many hormonal and neuronal activities. The midbrain and hindbrain control vision as well as involuntary activities such as respiration etc. All three parts of the brain control both voluntary and involuntary activities.
Hence, the brain has Broca's area, which regulates speech and word formation.
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how does dna replication between prokaryotes and eukaryotes compare/contrast? choose all that apply.
SIMILARITIES
All prokaryotic and eukaryotic species replicate their DNA in a similar manner. The DNA helicase enzyme is responsible for unwinding the DNA . Polymerases are an enzyme family that facilitates the synthesis of new DNA strands.
Both kinds of organisms also adhere to a replication strategy known as semi-conservative replication. A leading and a trailing strand are created in this arrangement as a result of the distinct directions in which the individual DNA strands are produced.
Small DNA fragments known as Okazaki fragments are produced and subsequently fused to form lagging strands. Both kinds of organisms start new DNA strands with a little RNA primer.
DIFFERENCES
The discrepancies in the size and complexity of the DNA and cells of these organisms are largely responsible for the differences between prokaryotic and eukaryotic DNA replication. A prokaryotic cell has 25 times as much DNA as an ordinary eukaryotic cell.
Prokaryotic cells have a single point of origin, simultaneous replication in two opposing directions, and cytoplasmic replication.
On the other hand, eukaryotic cells use unidirectional replication within the cell nucleus and have numerous sources of origin. Eukaryotes have four or more different types of polymerases, compared to one or two in prokaryotic cells.
Prokaryotic cells replicate far more quickly than eukaryotic cells do. While animal cells like human cells can take up to 400 hours, some bacteria can grow in as little as 40 minutes. Eukaryotes also have a unique method for duplicating the telomeres that are found at the ends of their chromosomes.
Prokaryotes contain circular chromosomes, which eliminate the need for ends. Finally, whereas eukaryotic cells only undergo DNA replication during the S-phase of the cell cycle, short replication occurs almost continuously in prokaryotes.
What is DNA replication?
Cell duplicate their genome's DNA through a process known as DNA replication. Before dividing, a cell must copy (or duplicate) its entire genome in order to make sure that each daughter cell will have a full genome.
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Please hurry
Which of the following is the relatively largest type of organism?
Select one:
a.
protozoan
b.
virus
c.
fungi
d.
bacteria
I think your answer would be B: Virus.
---------------------------------------------------------------------------
Hope this helps! Sorry if it's wrong!
Have a great day and God bless! :D
Answer:
Protozoan
Explanation:
I took the quiz
Which ventricle is located between the right and left halves of the diencephalon?.
The third ventricle is the ventricle located between the right and left halves of the diencephalon.
The brain consists of interconnected fluid-filled cavities called ventricles. The ventricular system is composed of two lateral ventricles, the third ventricle, the cerebral aqueduct, and the fourth ventricle.
The third ventricle is a narrow funnel-shaped cavity of the brain that is located in the midline between the two hemispheres of the diencephalon of the forebrain. The third ventricle makes up the central part of the brain and facilitates communication between other ventricles.
The main function of the third ventricle is to produce, secrete, and convey CSF in the brain.
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