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tamaranim1 [39]
3 years ago
14

The use of stem cells in research and treatment remains controversial because stem cells come from

Biology
1 answer:
Tanzania [10]3 years ago
5 0
Early embryos (unborn child)
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Provide more than double the energy provided by carbohydrates or proteins in human body.
hodyreva [135]
I'm not too sure which one of these two but its either A or C
7 0
2 years ago
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Carbohydrates, lipids, and protein are types of carbon compounds that are broken down to produce..
devlian [24]
They make up everything needed to create DNA, although im not very sure, i think the answer your looking for is DNA.
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3 years ago
Does the Fox get all of the energy from the oak tree during photosynthesis
erastovalidia [21]

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I think yes but I'm not sure.

Explanation:

3 0
3 years ago
Why is the position of the eyes of a macaw makes it difficult to judge distance
OLEGan [10]
The position of the eyes of a Macaw are as follows. Each eye is located on either side of the birds head. This is called Monocular vision, opposed to our eyes which are located in front of our head, adjacent to each other. Mono comes from the Greek root word meaning 'alone'. Making it understandable that, that type of vision is more limited.  The operation of their eyes, view things differently in comparison to that of binocular vision (what we humans have). They have a more broad view but cannot judge distance or depth very well.
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7 0
3 years ago
Identify which type of natural selection is described in each case below.
ICE Princess25 [194]

Answer:

Results in the evolution of the species: Directional selection

Results in new species: Disruptive selection

Favors traits at the two extremes: Disruptive selection

No increase in diversity: Directional selection

One extreme trait is favored: Directional selection

Diversity decreases: Stabilizing selection

Diversity increases: Disruptive selection

Explanation:

Directional selection which is also known as positive selection is known to be a mode of natural selection. In this type of selection, an extreme phenotype is favored over other phenotypes. This makes the allele frequency to move in the direction of that phenotype and this takes place over time.

Disruptive selection (known to be diversifying selection) talks about the certain changes in the population genetics whereby extreme values of a particular trait are favored over intermediate values. This results in new species.

While Stabilizing selection is a natural selection whereby there is a stabilization of the population mean on the particular value of a non-extreme trait. Here the diversity is decreases.

3 0
2 years ago
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