A. genetically identical 2n somatic cells
The answer is the first one
Answer:
A corridor that is attached or connected to a large patch.
Explanation:
Corridors in biology can either be within an aquatic or terrestrial environment. The movement of animals is mostly between these two corridors, or corridors within the main ones. Because corridors are very long and continuous strips of land or water with much vegetation or reefs, there are numerous amounts of species. These corridors are meant to aid movement of animals, so it is only natural that there would be a large amount of them at the end of a corridor.
Follow this link for helpful answer
https://www.reference.com/science/function-gastric-caeca-7b6d7732ca4340e5
