Answer:
The correct answer would be B) homologous.
Homologous organs refer to the set of organs which have different appearance and function but share common anatomy due to common ancestry.
For example, the forearm of human, forelimb of the horse, wing of a bat, wings of birds, and seal's flipper share common underlying anatomy. They are made up of same sets of bones (humerus, radius, ulna, carpels, metacarpals, and phalanges).
These organs are adapted to perform different functions in an environment.
It is also observed that these organs developed in the same manner in the embryo and from similar origins.
The <span>amount of food, habitat, water, and other necessities available in the </span>environment<span>.</span>
It can become an ion because it can lose or gain an electron. It can become a part of molecule because it can form covalent bond with other atoms to gain a full valence shell.