Answer:
d
Explanation:
the DNA is smaller than the chromosome by just a bit and 300 miles of DNA fit into a nucleus.
I believe the correct answer would be <span>variation. The definition of variation in biology means,</span><span> any difference
between cells, individual organisms, or groups of organisms of any
species caused either by genetic differences or by the effect of environmental factors on the expression of the genetic potentials. So i think that organisms can also be classified as variation. Hope this helped. ♥ ☺
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Answer:
An underground cavern collapsed
Explanation:
I did research
The second stage of prenatal development begins at about two weeks after conception. at this point, the growing bundle of cells is called an embryo.
That would be the mitochondria. They produce the energy needed for activities that occur in the cell, thus its being called the "powerhouse of the cell"