Algae

Algae

Photosynthetic, almost exclusively aquatic, nonvascular plants that range in size from simple unicellular forms to giant kelps several feet long. They have extremely varied life cycles and first appeared in the Precambrian.

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Part of Speech: noun
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Industry/Domain: Earth science
Category: Geology
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Related terms

algae

Natural environment; Coral reefs

Unicellular, multicellular, solitary, or colonial organisms that contain chlorophyll. They lack roots, stems, leaves, flowers, and seeds. Algae are in the Kingdom Protista.

algae

Archaeology; Evolution

An umbrella term for various simple organisms that contain chlorophyll (and can therefore carry out photosynthesis) and live in aquatic habitats and in moist situations on land. ...

algae

Natural environment; General

Simple rootless plants that grow in sunlit waters in proportion to the amount of available nutrients. They can affect water quality adversely by lowering the dissolved oxygen in ...

algae

Geography; Physical geography

Collective name for a group of chlorophyll-containing plants, ranging in size from single cells to stems, including seaweeds and freshwater forms.

algae

Energy; Energy efficiency

Primitive plants, usually aquatic, capable of synthesizing their own food by photosynthesis.

algae

Fishing; Fish farming

Plant-like organisms which grow in water. While many algae grow as a fuzz or slime without much visible structure, some is leafy. Other algae is hard and calcareous.