Which of the Following Findings Supports the Concept of Reciprocal

question 1

Multiple Choice

Which of the following findings supports the concept of reciprocal altruism?

• A) Human mothers can recognize their new babies from photographs, even when they have had little contact with the babies.
• B) Across cultures, people are more willing to help closely related individuals than strangers.
• C) Chimpanzees will share food with other primates who share with them.
• D) Identical twins cooperate more when working together compared to fraternal twins.

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Definitions:

Fertilized Egg

An egg cell that has been penetrated by a sperm cell, initiating the development of a new organism.

Estrogens

A group of steroid hormones that promote the development and maintenance of female characteristics of the body.

Progesterone

A hormone released by the ovaries that plays a role in the menstrual cycle and pregnancy.

Menstruation

The monthly shedding of the uterine lining in females, part of the menstrual cycle that prepares the body for pregnancy.