Glossary of Biological Terms

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Z

zoned reserve systems

Habitat areas that are protected from human alteration and surrounded by lands that are used and more extensively altered by human activity.

zoology

[Gk. zoe, life + logos, a discourse]
The study of animals.

zooplankton

[Gk. zoe, life + plankton, wanderer]
A collective term for the nonphotosynthetic organisms present in plankton.

zygote

(zi-goat) [Gk. zygon, yolk, pair]
The diploid product of the union of haploid gametes in conception; a fertilized egg.

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