What does the archenteron eventually become?

The pancreas, thyroid, and respiratory system originate from the:

Biston betularia is one of the famous examples of macroevolution resulting in a light and dark morph.

A population has 36% recessive homozygotes. The frequency of the homozygous dominant genotype should be:

The starfish is:

One of the best studied instances of ____________ is seen in Cepaea nemoralis.

The origin of a new plant species by hybridization coupled with non-disjunction is an example of:

Which organ system develops first in vertebrates like the chick?

Darwin’s finches is an example of sympatric speciation.

Two species of garter snakes live in the same region, but one lives in the water and one lives on land. Select the option that best describes the above: