It is true that human has 23 chromosomes, in contrast to chimps who have 24 chromosomes,and lack any pair resembling the long human chromosome 2 pair and instead chimps have two pairs of medium sized chromosome, This would be explained by the fact that the common ancestor of both humans and chimpanzees had 24 chromosomes, however at some point in the human lineage, two chromosomes fused end to end, providing some selective advantage and thus humans ended up having 23 chromosomes instead of 23.
Answer:
Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation. Some new alleles increase an organism's ability to survive and reproduce, which then ensures the survival of the allele in the population.
Explanation:
hope this is right...
True. Kurtosis is used to measure how pointed the curve is. A <span>tall, thin curve is described as being leptokurtic. A short, flat curve is platykurtic. A normal curve is said to be mesokurtic.</span>
Answer:
The neck is a first class lever
Explanation:
I say that it is D well i think it's D
