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In Organisms That Lack a Circulatory System, What Is the Most

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In organisms that lack a circulatory system, what is the most common method of exchanging nutrients from the external environment to the body?


Definitions:

Reproductive Strategy

A biological concept referring to the behaviors and mechanisms organisms use to produce offspring and ensure their survival.

Psychosexual Development

Freud's theory that describes how personality develops through five stages (oral, anal, phallic, latency, genital) during childhood.

Socialization

The process by which individuals acquire the norms, values, and behaviors necessary for participating within their society.

Evolutionary Theory

A set of principles that explains the diversity of life on Earth by processes such as natural selection, adaptation, and speciation.

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