What possible factors could dictate or influence the number of spinal nerves in animals?
Developmental gene expression patterns could be a possible factor that could influence the number of spinal nerves in animals.
In vertebrates, a spinal nerve is any of the several pairs of peripheral nerves that emerge from the spinal cord. A spinal nerve is a mixed nerve that conveys motor, sensory, and autonomic signals. Each pair joins a certain part of the body to the spinal cord. The number of spinal nerves in a vertebrate corresponds to the number of vertebrae in the vertebral column.For example, tadpoles have greater number of spinal nerves than adult frogs owing to their tails. Tails are expendable organs. As a tadpole metamorphoses into an adult frog, the tail is lost. Hence, the spinal nerves originally present in the tail are lost too thereby reducing the number of spinal nerves in an adult frog.Therefore, factors such as developmental gene expression patterns, morphology and developmental processes of an animal could dictate or influence the number of spinal nerves in animals.
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Crossing two green corn plants results in 2/3 green progeny and 1/3 white progeny. if you cross 2 green progeny with each other, your expected phenotypic ratio is:____.
(A) 100% is the expected phenotypic ratio. This is because 2 green progeny are crossed with each other as crossing two green corn plants results in 2/3 green progeny and 1/3 white progeny.
Green is the dominant phenotype and white is the recessive trait because when two green plants are crossed, two thirds of the offspring are green.
Now that only homozygous recessive will produce white, if two whites are crossed, there is a 100% chance that the children will also be white. There is no possibility of the dominant characteristic (green) manifesting when both parents are white.
The following cross can be used to convey this (taking W as the allele for color):
Parents : ww x wwGametes : w,w,w,ww w
w ww ww
w ww ww
The punnet square makes it clear that all of the progeny are homozygous recessive. As a result, choice a is accurate.
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Question correction:
Crossing two green corn plants results in 2/3 green progeny and 1/3 white progeny. If you crossed two white progeny with each other, how many of the progeny would you predict to be white?
A) 100%
B) 2/3
C) 3/4
D) 1/4
On the first graph, which label is on the x-axis? (Look at Photo)
A. Glucose
B. Meals
C. Blood Glucose
D. Time
What resources are provided by the biosphere for human use? Select one and explain how we as humans sustain it to prevent it from being completely depleted.
Answer: air, water, soil, minerals, fuels, plants, and animals.
Explanation:
Dna is composed of double-ring nitrogenous bases, whereas rna is composed of single-ring nitrogenous bases. True or false?.
DNA is composed of double-ring nitrogenous bases, whereas rna is composed of single-ring nitrogenous bases -FALSE
DNA IS deoxyribonucleic acid,an organisms genetic information whereas RNA is ribonucleic acid, a spiral helix strand that reads dna instructions to make proteinsphosphate group, sugar molecule, and nitrogen base are the three components of the nucleotide subunit of DNA Base Pair Rule is thethe observation that adenine always bonds with thymine, and guanine always bonds with cytosine in DNA molecules DNA helicase is the enzyme responsible for breaking the hydrogen bonds between the nucleotides "unzipping" the DNA molecule and allowing replication to take placeDNA polymerase is the the enzyme responsible for joining individual nucleotides to form a new strand of DNATo know more about DNA visit : https://brainly.com/question/264225
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Calcium crystals are a normal part of what body region?
Wind would move in a straight line if
Wind would move in a straight line in thunderstorms that is thunderstorm winds are straight line.
When wind blows in straight line?Though wind never blows in straight line because earth is rotating but in some condition it does.When there is a thunderstorm then wind do not have any rotation then we can say wind blows in straight line that is the nature of wind blowing in thunderstorm is straight line.Wind do not blow in straight line usually because Earth is rotating , in northern hemisphere the spin of earth causes winds to curve to the right.Because of the deflection of the air the wind doesn't blow in straight line usually.To know more about wind visit:
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Scientific research has led to the discovery of many types
of bacteria and viruses that cause human diseases.
Which statement best describes the impact of this scientific research?
A. It has a negative impact on both society and the environment.
B. It harms the environment because it prevents scientists from
researching environmental problems.
C. It has a negative impact on society but a positive impact on the
environment as new species are discovered.
D. It benefits society because the research helps scientists develop
new treatments.
Scientific research has led to the discovery of bacteria and viruses, which benefited society because it helped scientists to develop new treatments against diseases (Option D).
What does the impact of scientific research mean?The impact of scientific research involves the positive outcomes that society holds by the scientific investigations that aim to discover different microorganisms such as in this case bacteria. These investigations helped to develop new treatments focused on specific characteristics of these microorganisms.
In conclusion, the statement 'it benefits society because the research helps scientists develop new treatments' is True about the impact of scientific research (Option D is correct).
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Answer: D
Explanation: I have my ways ;>
explain your rankings of the trampolines potential energy
Our kinetic energy changes with our velocity when we jump up and down. When we leave the trampoline surface on the way up and just before we strike the trampoline on the way down, our kinetic energy is at its peak.
When we lands on the trampoline, we put efforts into transforming the trampoline's elastic potential energy into kinetic energy. The trampoline is working on us as we is launched back into the air.
What is potential energy ?The energy held within an object as a result of its position, configuration, or state is known as potential energy.
One of the two primary types of energy, along with kinetic energy, is potential energy.
When we lands on the trampoline, we put efforts into transforming the trampoline's elastic potential energy into kinetic energy. The trampoline is working on us as we is launched back into the air.
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Endotoxin is associated with:_____
a. gram-positive bacteria.
b. a molecule that binds nerve cells.
c. a component of lps.
d. excreted from the cell.
e. an interleukin.
Endotoxin is associated with a component of lps.
What is endotoxin in bacteria?Endotoxin are agents of pathogenicity of gram negative bacteria ,implicated in the development of gram negative shock. Endotoxin reacts with lipopolysachhride sensitive cells producing endogenous mediators such as tumour necrosis factor alpha.
The endotoxin is associated with lipopolysacchride. Toxicity is associated with the lipid components and immunogenicity is associated with the polysaccharides components.
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Long-range interactions between residues on a single polypeptide chain could best be classified as _____ structure.
(c) tertiary structure is what long-range interactions between residues on a single polypeptide chain could best be classified.
One nucleotide chain alone is all that is present in the tertiary structure of proteins. Additionally, the chains of amino acids establish bonds with one another to create the tertiary structure of proteins. Protein domains in it interact with one another to create tertiary structure.
There is a single nucleotide chain in the main. A protein's secondary structure is a three-dimensional arrangement of its nucleotides. More than one nucleotide sequence is included in quaternary structure. Accordingly, Option C, "tertiary," is the appropriate response.
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Question correction:
Long-range interactions between residues on a single polypeptide chain could BEST be classified as _____ structure.
A) primary
B) secondary
C) tertiary
D) quaternary
E) globular
31
Final Exam
OA
the victim's corpse
OB. the suspect's firearm
OC
an insect
a skeleton
On a crime show, the detective says, "We have to get this stiff to the lab immediately." Based on this statement, what do they MOST likely want to
get examined?
O D.
Reset
Submit Test
Next
Tools
Answer:
An autopsy on the victim and of course a thorough examination on the suspect's firearm to determine the fingerprint.
Nerve cells in the visual system, anywhere from the retina back to the occipital lobe, are known as.
Nerve cells in the visual system, anywhere from the retina back to the occipital lobe, are known as Visual neurons.
Neurons situated within the visual cortex are called visual neurons and these are highly specialized for their function. The corners of larger visual forms and lines of a specific length can be detected by these neurons. These cells slow down or stop responding when a line or corner of an image crosses a predetermined boundary.
Receiving, dividing, and integrating visual data is the main function of the visual cortex. Other parts of the brain are then delivered the processed information from the visual cortex to be studied and replied to.
Visual neurons are distinguished specifically as simple and complicated neurons. Simple cells, which are mostly found in V1 of the visual cortex, respond to a particular set of visual cues, such as edges and orientations, within a single receptive field.
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Which part of the microscope supports both the ocular lens and the revolving nosepiece?
The part of the microscope that supports both the ocular lens and the revolving nosepiece is called the head.
The microscope is a device that is used to examine smaller-sized objects that can not be seen with bare eyes.
The most commonly used microscopic devices are the electron microscope and light microscope.
Due to its high resolving power and powerful lenses, it can see small objects of sizes ranging between 10^-3 millimeters and 0.2 micrometers.
Moreover, it is used to see objects at uni and multi-cellular level allowing the scientists to observe organelles such as mitochondria and nuclei in a cell.
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At one time, several kinds of camels lived in Florida. The evidence comes from fossils
found in Florida. Which of these objects would be a fossil that shows that camels
once lived in Florida?
The correct answer is option 4.
According to the definition of fossil evidence, these are traces of ancient microbes, animals, and plants. It is possible to identify an organism's characteristics, lifespan, and significant life events using fossil evidence.
Examples include petrified wood, oil, coal, hair, fossilized bones, shells, exoskeletons, animal or microbe imprints in stone, preserved items in amber, and DNA traces. The collection of all fossils is known as the fossil record.
Fossils are the preserved remains or traces of extinct animals, plants, and other organisms.Because they demonstrate that earlier life on Earth was distinct from the species present now, fossils are crucial pieces of evidence for evolution.There are over 10 different kinds of camels known to exist in Florida, ranging in size from a little species that stands no more than 4 feet tall to the enormous long-necked giraffe-camel that stood more than 15 feet tall. They shared ancestry with many of the modern-day llamas found in the South American Andes.The question was incomplete. Please check below for full content.
At one time, several kinds of camels lived in Florida. The evidence comes from fossils found in Florida. Which object would be a fossil that shows that camels once lived in Florida?
a sinkhole formed by a retreating glaciera sedimentary rock that formed a long time agoa crystal formation suspended from the ceiling of a caveremains of an organism preserved by geologic processesLearn more about fossils here:
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5 uses of breast milk
The benefits of breast milk are:
Provides complete nutrition to infants.Contains the presence of antibodies.Has antibacterial propertiesRich in enzymes and water.Babies can easily digest it.Why is breastfeeding important?Breastfeeding creates a healthy and emotional bond between a mother and her child. Breastfeeding supports the healthy growth of an child. It fulfils all the nutritional requirements of an infant.
Active breastfeeding supports good IQ level in infants and also boosts their immunity.
Exclusive breastfeeding reduces the chances of breast cancer in women and also aids in their postpartum weight loss.
Thus, breastfeeding is important for both mother and infant.
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Which factor affects osmosis through a membrane?
A.concentration of water on one side of the membrane and the permeability of the membrane
B.concentration of water on both sides of the membrane and the permeability of the membrane
C.cow fast the carrier proteins move substances through the plasma membrane
D.how slow the carrier proteins move substances through the plasma membrane
Answer:Concentration gradient
Explanation: The osmotic gradient is the difference between two concentration solutions at either side of a semi permeable membrane that distinguishes the different percentage of a specific particle concentration that is dissolved in a solution. The osmotic gradient acts on solutions having a semi permeable membrane between them; allowing water to diffuse between the two solutions toward the solution with the higher concentration. Eventually, water with higher concentration will be equally diffused to the side of a lesser concentration. It creates equilibrium for water continues to flow equally both ways, resulting in a stabilized solution.
explain in detail how enzymes work.
A community of organisms and the physical environment it occupies are known together as a(n):________
a. species.
b. community.
c. population.
d. ecosystem.
Answer: Ecosystem
Explanation: I believe it is an ecosystem because a species is a group of one specific kind of organism. A population only refers the number of species in a community or ecosystem and a community only refers to living organisms not the environment. A ecosystem usually refers to both organisms (biotic) and environment (abiotic).
Before they travel across the synapse to bind with receptors on the postsynaptic membrane, chemical messengers are stored in what location on the presynaptic membrane?.
They are stored in synaptic vesicles.
Where are chemical messengers kept on the presynaptic membrane before they cross the synapse to connect with receptors on the postsynaptic membrane?
Neurotransmitters come in a wide variety, and more are always being found! The very definition of what constitutes a neurotransmitter has evolved and grown throughout time. We'll discuss these unconventional neurotransmitters at the end of the article, but for now, let's start out by talking about the conventional ones. The chemical messengers that act as conventional neurotransmitters share some basic features. They are stored in synaptic vesicles, get released when textCa2+Ca increases in the synaptic cleft, and are released from synaptic receptors.
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If a scientist is studying a coral reef, including both the biotic and abiotic components, what level of ecology is being studied?.
When researching a coral reef, a scientist should consider both the biotic and abiotic elements Ecosystem.
Describe an ecosystem:An ecosystem is a place where plants, mammals, and other creatures interact with the environment, weather, and other variables to form a bubble of life. Biotic and abiotic factors, or nonliving elements, coexist in ecosystems. Biotic factors include plants, mammals, and other species.
Why is the ecosystem important?The value of an ecosystem:
Wild flora and animals can live there and find habitat. It encourages different food webs and food chains. It supports life and regulates crucial ecological processes played a part in the transfer of nutrients between biotic and abiotic elements.
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What type of muscle contraction occurs between landing and jumping during plyometric training?
Answer:
Isometric contraction muscle contraction occurs between landing and jumping during plyometric training
Explanation:
Exercises called isometric contractions include tightening (contracting) a particular muscle or set of muscles. Overall length of the muscle sometimes doesn't significantly alter during isometric activities. Additionally, the damaged joint is immobile. Exercises that are isometric improve and develop strength. Although ineffectively, they can also increase strength. They can also be carried out anyplace. A leg raise or a plank are two examples.
Isometric workouts can't increase speed or performance of an athlete since they must be performed in a stationary (static) position. But isometric workouts can help with stability, or maintaining the position of the injured region. Since muscles frequently contract in the absence of activity to help stabilise joints and the core, these workouts might be beneficial.
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- When the action potential reaches the end of
the axon terminal, it causes the release of
a. an electrical spark that sets off the next
cell
b. positively charged ions that excite the next
cell
c. negatively charged ions that inhibit the
next cell
d. neurotransmitters that excite or inhibit the
next cell
While fleming was investigating the effect of green mold, he added mold to only half of the dishes containing bacteria. why was the set of dishes without the mold an important part of the experiment? and what was this group called
While Fleming was investigating the effect of green mold, he added mold to only half of the dishes containing bacteria. The set of dishes without the mold was an important part of the experiment because they will help in deducing whether the hypothesis of Fleming was correct or not. This group was called the control group.
The scientific research method contains a control group and an experimental group. In a control group, changes are not made so that the results from the experimental group can be compared with the control group in order to deduce results from a hypothesis.
In the case above, half of the Petri dishes in which Fleming added the green mold were the experimental group. The other half, in which the mold was not added will act as a control group. The control group helped Fleming to deduce results from his hypothesis that the green mold was responsible for the killing of bacteria in the Petri dishes.
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What are some examples of secretory cells?
Which ecosystem with fertile soil has been mainly converted into agricultural farmlands for human use?
Answer:
the answer is Tropical Rainforests
What levels of protein structure would be affected if all hydrogen bonding interactions were prevented?.
Secondary, tertiary, and quaternary levels of protein structure would be affected if all hydrogen bonding interactions were prevented.
What is protein structure?The three-dimensional configuration of an amino acid-chain molecule's atoms is known as protein structure. Sequences of amino acids, the polymer's monomers, are used to create proteins, specifically polypeptides.
What are different levels of protein structure?Primary, secondary, tertiary, and quaternary structure are the four levels of complexity that can be used to characterize the entire structure of a protein. The primary structure of a protein is its polypeptide chain's amino acid composition; secondary structure is the local spatial organization of a polypeptide's backbone (main chain) atoms; tertiary structure refers to the three-dimensional organization of an entire polypeptide chain; and quaternary structure refers to the interactions between the four hemoglobin subunits.
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A modern data ecosystem includes a network of continually evolving entities. it includes:________
Answer:
Data sources, enterprise data, business stakeholders, etc.
The nose has mucus, a sticky substance. When outside air passes through the nose, the mucus
. Bronchitis, an inflammation of the bronchioles, is a condition in which the bronchioles are filled with mucus. When mucus accumulates,
.
The nose has mucus, a sticky substance. When outside air passes through the nose, the mucus filters the air. Bronchitis, an inflammation of the bronchioles, is a condition in which the bronchioles are filled with mucus. When mucus accumulates less air reaches to the lungs.
What is bronchitis?Bronchitis is a disease in which there is an inflammation in the lining of the bronchioles, this causes them to have a cough and this cough has mucus. It is a respiratory infection that spreads from the nose and trachea to the lungs. It can be contracted by a bacterial infection.
The symptomatology is: cough with mucus, inflammation of the bronchi, respiratory distress, general malaise, obstruction of the alveoli (with mucus), fatigue, among others.
Therefore, we can confirm that the nose has mucus, a sticky substance. When outside air passes through the nose, the mucus filters the air. Bronchitis, an inflammation of the bronchioles, is a condition in which the bronchioles are filled with mucus. When mucus accumulates less air reaches to the lungs.
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Please help me due soon
