Two Ways That the Internal Energy of a Substance Can

question 25

Short Answer

Two ways that the internal energy of a substance can be increased are __________ and __________.

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Definitions:

Variation

The presence of differences among individuals or populations, often providing the raw material for natural selection.

Evolutionary History

The record of the development of life on Earth, tracing the genetic changes in populations over generations and the emergence of new species.

Lemming-like Ancestor

Refers to an ancestral species resembling modern-day lemmings, often used in evolutionary biology to describe primitive characteristics shared with contemporary species.

Genetics

The scientific study of heredity and the variation of inherited characteristics among living organisms.