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icang [17]
2 years ago
6

What is the role of DNA?

Biology
2 answers:
AleksAgata [21]2 years ago
6 0

Answer:

c

Explanation:

every thing related to dna is encoding or transcribing genetic info or genes

Alja [10]2 years ago
5 0

Answer:

To encode genetic information and control the cell

Explanation:

I GUESS

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[2]
Gennadij [26K]

Answer:

Blood is carried away from the heart by arteries. Blood that is rich in oxygen. Blood that is low in oxygen is returned to the heart by veins. there is more pressure in arteries than in veins.

5 0
2 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
2 years ago
Give 2 examples of external stimuli
Natali [406]

Answer:

How our body responds to light and how our body responds to danger.

Explanation:

External stimuli are changes that happen outside the body that our body's scenes can detect.

8 0
3 years ago
Read 2 more answers
In sector 3, stratum D looks like it disappears. Which law makes you expect to find stratum D in sector 3? What could explain th
kumpel [21]
I think it's the one law about horixontsality
3 0
3 years ago
Read 2 more answers
One of the monosaccharides is a building block of a plant's cell wall. It is
ch4aika [34]
The answer its Glucose. 
4 0
2 years ago
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