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OLEGan [10]
3 years ago
5

Explain why natural selection cannot occur in a population that has no variation in traits.

Biology
1 answer:
Ann [662]3 years ago
6 0

In any population, members have slight differences among them, whether in height, eyesight acuity, beak shape, rate of egg production, or other traits that may affect survival and reproduction. If a trait has a genetic basis, it can be passed on to offspring helping the terms of natural selection.

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What happen to the protein that passes through the cisternae of the golgi?
makkiz [27]

Answer:

Proteins are processed and modified in a successive manner to add or remove sugar as they move from cisterna to cisterna.

Explanation:

Golgi apparatus has a flat membrane disk in varies in number in stack, the number can be in between 3 to 20, however six is found in most of them. Cisternae can be separated in four classes cis, medial, trans, and TGN.

Proteins that come from the endoplasmic reticulum in cis type of cisternae after passed through cis to cis and move the protein in order to add or remove sugars to protein.

Thus, the correct answer is - Proteins are processed and modified in a successive manner to add or remove sugar as they move from cisterna to cisterna.

3 0
3 years ago
What is an adaptation?
MariettaO [177]

Answer: An adaptation is a change That’s happens to a species of animal over a long period of time. The point of an adaptation is to help the animal survive easier in the wild. An example would be a giraff’s neck. Giraffes adapted to have long necks so that they can reach the leaves on trees.

Explanation:

8 0
3 years ago
When getting a vaccination, which substance is
Vlada [557]

Answer – 3. A weakened form of a virus
 When getting a vaccination, the substance which is injected into the body is a weakened form of a virus. This weakened from of the virus has the ability to arouse the body’s defense mechanism without causing an infection. <span>
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3 0
3 years ago
Nancy suffer from insulin dependent diabetes mellitus and is on insulin therapy. You administered her insulin dose orally and re
maxonik [38]

Answer:  Insulin is a hormone, which is secreted by the pancreas to regulate the sugar levels in the bloodstream.

Explanation:

Insulin is a protein hormone if take orally, will get digested in the digestive tract, it will not be able to affect the target site of action.

Insulin gets denatured in the digestive tract. Thus it will not be able to control the blood sugar levels.

Nancy has taken the insulin dose orally, the insulin will get denatured in the digestive system, it will not function and Nancy will remain hyperglycemic after the consumption.

5 0
3 years ago
Greg is breeding leopard geckos and wants to produce a new color morph. He crosses a homozygous red morph with a homozygous whit
Anestetic [448]

Answer:

Codominance

Explanation:

Codominance occurs when two heterozygous allele for a trait is expressed equally in the an organism's phenotype with neither allele being dominant or recessive. In codominance, none of the allele hides the expression of the other allele. So when two alleles are crossed, the offspring carries a combination of the parents phenotype without anyone masking the other.

From the question,  the type of genetic pattern of the leopard geckos display is codominance.

6 0
3 years ago
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