Answer:
1:1
Explanation:
In a Punnett Square there's two offspring out of the four that have two different alleles.
The population size should decrease at higher trophic levels. The reason is there isn't enough prey to feed the predators as the trophic levels increase. For example, the biggest impact in the ocean would be if you lost all the small fish in an ocean because the predators would be left with less food. It's not exactly correlating, but if you think a little about the statistics it makes sense.
hope this helps
D. Mechanically and chemically breaks down food for nutrient absorbtion
Answer:
Variation in gene leads to anatomical difference in the closely related species
Explanation:
Though some organisms are morphologically very different from each other, yet they can belong to same species group. It is because of shared genetic framework with minute changes.
For example – Human and chimpanzees have similar genes and share about 99 percent their genes with each other.
The variation in 1 % gene has led to visible anatomical differences such as varying lengths of arms, jaw structure and size etc.
The same is the case with six living species of mammals and their close relationship with dugongs and elephants