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:
Less energy is transferred at each level of the food chain so the biomass gets smaller. As a result, there are usually fewer than five trophic levels in food chains.
Answer:
DNA
Explanation:
how does hereditary work?
Answer:
Life may exist in extreme conditions
Explanation:
The conditions in other planets do not normally resemble those on Earth. They are commonly much hotter or colder and are filled with toxic gases or liquids. It would be easy to think that life could not exist in those inhospitable places, but when we see how life on our own planet has adapted to the harshest enironments we have to think again and consider that life could exist in those extreme planets.
