Answer:
The protein covering of a virus is called a capsid.
Answer:
Reciprocal altruism is one of the altruism behaviors in which an individual organism helps in increasing the fitness of another organism by reducing the fitness of itself temporarily in expectation of the same behavior from another organism in the future later.
It takes place in the same set of organism partners which is a continuous interaction ion in stable groups of organisms.
Thus, the correct answer would be - an ongoing interaction in the same set of partners.
Answer #1: instinctual trait
Answer#2: learned trait
Right upper is the location for the duodenum
c would be the correct answer to this question
