The answer is B: Sister chromatid
Answer:
The correct answer would be phenotypic variation.
Phenotype refers to observable traits or characteristics of an individual. For example, height, color, shape, et cetera.
Phenotypic variation refers to the sum total of variations in characteristics within populations of the same species.
In contrast, genotypic variation refers to the sum total of variations (such as allele frequency) present in the genome of populations of the same species.
Answer:
the mature organism is sterile.
Explanation: just is
Darwin's opinion that living forms must be descended from extinct forms was most closely related to his consideration of the fossil record.
This is called active transport. The proteins use ATP to transport stuff in and out of the cell.
