Science Semester Test Ch. 16

9 terms by vanbeek 

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T

The skeletons of all vertebrate embryos are made up of cartilage but are usually replaced by bone as they grow

T

Warm-blooded animals warm their bodies by capturing the heat released by chemical reactions in their cells

F

Cold-blooded animals only live in cold places

F

Gills allow organisms to breathe in the water as well as on land

Cartilage

A flexible tissue that gives support and protection but is not rigid like bone

Endotherms

Animals that maintain a constant body temperature despite changes in the environment

Internal

The fertilization of eggs by sperm in side the female's body

Ectotherms

Animals whose body temperatures change with the environment.

External

The fertilization of eggs by sperm outside of the female's body

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