The End of One Time Period and the Beginning of the Next

question 24

True/False

The end of one time period and the beginning of the next occupy the same place on a timeline.

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Definitions:

Air-breathing Animals

Organisms that intake oxygen from the air to the lungs or other special respiratory organs to sustain life.

First Land Animals

Early terrestrial organisms, primarily arthropods and amphibians, that colonized land during the Paleozoic era.

Arthropods

Invertebrate animals with exoskeletons, segmented bodies, and jointed limbs, including insects, arachnids, and crustaceans.

DNA

Deoxyribonucleic acid, a molecule that carries the genetic instructions used in growth, development, functioning, and reproduction of all known living organisms.