Answer:
This is an example of founder effect.
Explanation:
Founder effect may be illustrated as the loss of genetic variation in a novel small population originated from the original population. The concept was initially presented by Ernst Mayr. It can be seen that genetic diversity has got reduced in the population of iguana due to the result of the flood that has washed all the iguana without webbed feet into the sea.
The new population has got inclined from the small iguana population. Thus, the iguana population is regarded as an illustration of the founder effect.
Adenine is a component of ATP and is also found in both DNA and RNA.
Archaea means ancient, bacteria are, well, minuscule organisms that live everywhere, and eukarya are organisms with cells that have a nucleus as well as membrane-bound organelles... my best guess if it is planets you mean, then the answer would be archaea, if it is plants, like flowers or such, then it is eukarya.
I hope this helps!
Answer: Option D.
Thalamus.
Explanation:
It is thalamus because thalamus is a mass of grey matter structure in the brain that is located between the cerebral cortex and the midbrain which also have some nerves connected to them and it is responsible for sending motor and sensory signals to the cerebral cortex and also regulate conciousness and mental alertness.
It transmit information from the higher brain region to the medula and cerebellum.