What form of natural selection does the histogram show?

disruptive selection

sexual selection

directional selection

stabilizing selection

Answer:

C

Explanation:

Everything around us is all about science...We practice them everyday...All thanks to the scientists after so much examines,they let us know more about many things we don't know much about,they worked on them and improve them so that we can live a convenient life.

Answer: A

Explanation: TOOK THE TEST OK

Alpha and beta particles lacks sufficient penetrating power for bulk sterilization

Bulk sterilization is a means of reducing contaminants using a vessels at a very high temperature.

Among the particles we have, alpha particles is known to have a low penetrating power compared to gamma radiation. Hence we can conclude that  alpha and beta particles lacks sufficient penetrating power for bulk sterilization.

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When you are exposed to bright light, cells in the retina detect the stimulus and send it to the brain for processing. The brain commands the iris to constrict and decrease pupil size.

The structure that serves as a receptor in this system is Retina

Organisms adapted and evolved the eyes to see the surrounding environment. This ability to see begins when the visible wavelength of light enters the eye through a transparent covering called Cornea. The light enters the cornea and enters the inner of the eye through a round hole known as the pupil.

The light rays then enter the convex-shaped lens in the eye which focuses the beam of light on the back of the eye in the region of the tissue called the retina. The retina contains the photoreceptor cells-rods and cones in which the cone cells have the ability to detect three wavelengths of light especially blue, green and red which help us see various versions of the colour.

These cells convert light energy to chemical energy in the form of the action potential which gets transmitted to the part of the brain associated with the vision. This completes the pathway of the vision.

Thus, Retina is the answer.

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Answer:

Low calcium levels in the blood

Explanation:

In primary hyperparathyroidism, one or more of the parathyroid glands is overactive. As a result, the gland makes too much parathyroid hormone (PTH). Too much PTH causes calcium levels in your blood to rise too high, which can lead to health problems such as bone thinning and kidney stones. this will happen if parathyroid hormones got high in human body..

Answer:

Low blood calcium

Explanation:

the plant produce all the nutrients animals need

Answer:

The Product

Explanation:

In a chemical reaction the enzyme plays an important role in catalyzing the reaction.

The enzyme has an active site on its structure to which a substrate can come and bind. The active site has a specific shape to which the substrate of complementary shape can come and bind. once the substrate is bound to the active site of the enzyme the reaction takes place and a product is formed. Once the product is formed, product is released from the active site and enzyme remains unchanged at the end of the reaction.

therefore answer is product that is released from the active site

Answer:

Heterozygous roller/heterozygous curved, heterozygous roller/homozygous straight, homozygous non-roller/heterozygous curved, homozygous non-roller/homozygous straight

Explanation:

The death rate must balance with the birth rate while immigration and emigration must also balance.

An equilibrium is established in a population when the population neither decreases nor increases.

In order for this to happen, the number of deaths and births must be equal. In addition, the number of new individuals coming into the population must also be equal to the number of individuals leaving the population.

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Answer:

the nucleolus

Explanation:

i gotchu

The recursive function that  takes a pointer to the root node of a tree t and returns a pointer to the root node of the tree that results from removing all leaves from T is given as

void removeLeaves( Node * & t )

{

if( t == NULL || ( t->left == NULL && t->right == NULL ) )

{

t = NULL;

return;

}

removeLeaves( t->left );

removeLeaves( t->right );

}

A Recursive function in the language of programming refers to a routine that requests services from itself directly or indirectly.

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Answer:

C. Eliminating government funding of research.

Explanation:

Government funding is the backbone for new research and discoveries in any country. Without government funding, the number of discoveries and technology will decline drastically because research requires lots of money which every private organization may not be able to provide.

RNA consists of fewer nucleotides than DNA, which is up to 12,000. Thus, the correct option is C.

Nucleotides may be defined as molecules consisting of a nitrogen-containing base,  a phosphate group, and a pentose sugar.

DNA molecules consist of more sequences of nucleotides compared to RNA molecules. Most of the RNA molecules consist of nucleotides of no more than a few thousand and up to 12,000.

Therefore, the correct option for this question is C.

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The heart has two pumps

The properties not the heart include;

Thus, the heart has two pumps.

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The heart as a vital organ is characterized as being an organ with two pumps.

A typical heart is characterized by 4 chambers in which case, it has two upper and two lower chambers. The upper chambers, otherwise termed the right and left atria, receive low pressure incoming blood while the lower chambers, the more muscular right and left ventricles, pump blood out of the heart.

Hence, it follows the heart contains two pumps.

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Answer:

Ecological Succession is the change in structure of species and community over time

Answer:

Most of the Earth's water vapor is in the Troposphere. Approx. 99.13%

Explanation:

The troposphere is where most clouds and weather form over the Earth.

Explanation:

this is one question or one chapter can you please tell me the single question then I will answer

Answer:100% black with rough for both phenotype and genotype;4/4,1

Explanation:

so if a black coat and rough coat are dominant and a guinea pig that is a purebred(homozygous)black coat with rough coat and a homozygous white coat with smooth coat breed the dominant allele will show up for both so as a result since the black coat and rough coat are dominant the result will be 100% black with rough coat.

The inference is that the reason was because C. There are many rods but very few cones in the periphery of the retina.

An inference simply means the conclusion that can be deduced from the information given.

In this case, he correctly identifies the object but is unable to name the color because there are many rods but very few cones in the periphery of the retina.

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Cladistics reconstructs phylogenies by considering shared derived characters between taxonomic groups and the maximum parsimony criterium.

Cladistics evaluate the relationship between different taxa according to shared characters.

The cladistic analysis follows the maximum parsimony criterium.

Explains the character state from the point of view of the fewest changes through history. Explains evolution with the minimal amount of evolutive changes.

It recognizes the monophyletic groups as natural groups. These groups are the clades, and their classification -sequencing- represents their phylogeny.

The sequencing term refers to lists of groups according to their relationship and their shared traits. One group is the sister group of the following one.

Cladistics uses cladograms to represent the common ancestral relationships and the emergence of different characters among the involved groups.

So the cladogram represents the relationship between taxonomic groups according to a derived character.

The derived character is any new trait that a group transmits to its descendants.

Through evolution, the characters change, and new changes are added. When referring to a derived character, we mean that all the subsequent groups in the cladogram carry and share the trait.

According to this framework, cladistics reconstructs phylogenies by considering shared derived characters and the maximum parsimony criterium.

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If Alpa wants to change 0.54 kilometers into a smaller metric unit, she will be required to multiply.

A Metric unit may be defined as a technique of measurement in which the basic units are the meter, the second, and the kilogram. These units are interchanged with one another by using several formulas of conversion.

The complete question is as follows:

Alpha wants to change 0.54 kilometers into a smaller metric unit. She will have to:

Therefore, If Alpa wants to change 0.54 kilometers into a smaller metric unit, she will be required to multiply.

For example, In case, if she wants to convert 0.54 into meters, then she has to multiply it by 1000, that is, 0.54 * 1000 = 540 meters.

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Using immersion oil is useful as it acts as an interface between the blade and the front lens of the objective, improving the quality of the visualized image.

Immersion oil is a resource generally used with the objective of greater magnification, its function is to act as an interface between the blade and the front lens of the objective, improving the quality of the visualized image.

With this information, we can conclude that using immersion oil is useful as it acts as an interface between the blade and the front lens of the objective, improving the quality of the visualized image.

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Un-paraphrased (WILL BE DETECTED BY PLAGIRISM CHECKERS):
By the late 17th and early 18th centuries, the digestion of meat by stomach secretions and the conversion of starch to sugars by plant extracts and saliva were known but the mechanisms by which these occurred had not been identified. French chemist Anselme Payen was the first to discover an enzyme, diastase, in 1833.

Paraphrased (YOU ARE GOOD TO USE THIS, YOU WONT BE PLAGIRISED)

The digestion of meat by stomach secretions and the conversion of starch to sugars by plant extracts and saliva were known by the late 17th and early 18th centuries, but the mechanisms by which these occurred had not been identified. Anselme Payen, a French chemist, was the first to discover an enzyme, diastase, in 1833.

Answer:

A stable condition

Explanation:

Dictionary Definition- a tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes

Answer:

A Stable Condition

The tendency of a system, especially the physiological system of higher animals, to maintain internal stability, owing to the coordinated response of its parts to any situation or stimulus that would tend to disturb its normal condition or function.

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The fact that Thapsigargin is a potent calcium atpase pump inhibitor means that the phase that will see immediate effects is the Relaxation period.

Calcium ATPase pumps help the muscles to relax after contraction which means that Thapsigargin prevents this from happening.

It's effect will therefore be immediately felt in the relaxation period as muscles will be unable to relax.

Options for this question are:

a. Latent period

b. Contraction period

c. Relaxation period

d. All myogram stages are affected

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Answer:

It can Change their Lifespan if it's an insect

Explanation:

The stem cells are so controversial because it involves the destruction of the human embryo as well as its life for just research purposes only.

Stem cells may be defined as cells that are totipotent and pluripotent in nature and have the prospect to mature into many diverse types of cells in the body.

Embryonic stem cells are the type that is considered most unethical and controversial. The stem cell debate is the contemplation of the moralities of research involving the maturation and use of human embryos for only research methodologies.

Destruction of such important life for our own benefit or research purposes makes the podium controversial.

Therefore, it is well described above.

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Answer:

So, the correct answer is 'Cells wall is rigid and does not get overstretched'