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RoseWind [281]
2 years ago
11

Why must skeletons be hard and strong​

Biology
1 answer:
xeze [42]2 years ago
8 0

So they aren't broken quickly, and we aren't jelly, bones help us stay strong and upright

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Which type of cell must be affected by a mutation in order for the mutation to be maintained in the gene pool
Vedmedyk [2.9K]
Germ cell's I believe. These are cells that includes half your genome in order to reproduce.
7 0
3 years ago
In a separate study, 68 rock pocket mice were collected from four different, widely separated areas of dark lava rock. One colle
Fudgin [204]

Complete question:

In a separate study, 68 rock pocket mice were collected from four different, widely separated areas of dark lava rock. One collecting site was in Sonora, Mexico. The other three were in Chihuahua, Mexico. Dr. Nachman and colleagues observed no significant differences in the color of the rocks in the four locations sampled. However, the dark-colored mice from the three Chihuahua locations were slightly darker than the dark-colored mice from the Sonora population. The entire Mc1r gene was sequenced in all 68 of the mice collected. The mutations responsible for the dark fur color in the Sonora mice were absent from the three different populations of Chihuahua mice. No Mc1r mutations were associated with dark fur color in the Chihuahua populations. These findings suggest that adaptive dark coloration has occurred at least twice in the rock pocket mouse and that these similar phenotypic changes have different genetic bases.

How does this study support the  concept that natural selection is not random?  

Answer:

The study supports the  concept that natural selection is not random because in different areas with the same or very similar environmental characteristics, the same phenotype was produced by different types of mutations.  

Explanation:

All of the sampled animals are inhabiting dark substrate. Probably animals needed to camouflage to survive. Natural selection must have driven them to produce dark color, similar to the substrate color. So animals from the different regions suffered different mutations that drove them to have almost the same dark fur color. The environmental condition is favoring the same phenotype.

7 0
3 years ago
Describe the production and processing of a protein that that will be exported from a eukaryotic cell.
12345 [234]
Firts you begin with the separation of the messenger (RNA) from the (DNA) template and end with the release of the protein at the plasma membrane.

8 0
3 years ago
Weigh is a measure of pull of gravity on an object true or false
user100 [1]

Answer:

The answer is "TRUE!"

Explanation:

Weight is a source of forceful motion that is generated by the pull of gravity. Gravity that is originated in the center of the earth, attracts smaller objects towards that center, in which the measurement of how strong that force really is, is weight.

3 0
3 years ago
Read 2 more answers
Cell division results in reproduction, growth, replacement and recycling of the organism.
Naddika [18.5K]

Answer:

False

Explanation:

4 0
3 years ago
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