I would need the picture to know how to answer this question
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.
They did not have big differences between social classes and had extensive trade with nearby people<span>
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Answer:
false
Explanation:
they are made in the bone marrow