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| natural selection that favors altruistic behavior toward close relatives resulting in an increase in the individual's genetic contribution to the gene pool |
| the compact area of a nerve cell that constitutes the nucleus and surrounding cytoplasm, excluding the axons and dendrites |
parent par·ent (pâr'ənt, pār'-)
n.
One who begets, gives birth to, or nurtures and raises a child; a father or a mother.
An ancestor; a progenitor.
An organism that produces or generates offspring.
To act as a parent to; to rear and nurture.
To cause to come into existence; to serve as a source for; originate.