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Serjik [45]
3 years ago
5

Protonema have large surface area to volume ratio you can predict that

Biology
1 answer:
Vaselesa [24]3 years ago
6 0

Answer;

-They are absorptive interfaces with the environment.

Explanation;

-The important point is that the surface area to the volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume.

-The surface area to volume ratio of an object is the relationship between two measurements. It is the ratio of Surface area to volume. It shows the comparison between the size of the outside of an object and the amount inside. Small or thin objects have a large surface area compared to the volume.

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Which example could be evidence for an organism's growth being influenced by the organism's genes?
QveST [7]

Answer:

C

Explanation:

a hamster species can be made similar by mating together only small hamsters.if uh need explanation let me know.

5 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
2 years ago
Please help me asap
MArishka [77]
I’m not sure but I think A
7 0
3 years ago
Read 2 more answers
In guinea pigs, the short hair trait is dominant. If two heterozygous guinea pigs were crossed, what would be the phenotypes of
Luba_88 [7]
Answer is B. Best way to check is make a square
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3 years ago
Which sentence best describes how the loss of water from a plant's leaves helps the plant?
pogonyaev

Answer:

i think it d

Explanation:

3 0
3 years ago
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