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Astronomy

The scientific study of planets, stars, black holes, comets and other celestial bodies that make up outer space.

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anemophily

Plants; Flowers

Seed plants which are pollinated by wind are said to be anemophilous.

angiosperm

Plants; Flowers

A group of plants that produce seeds enclosed within an ovary, which may mature into a fruit; flowering plants.

anther

Plants; Flowers

The pollen producing tip of a stamen; part of a flower.

antheridium

Plants; Flowers

The organ on a gametophyte plant which produces the sperm cells.

anthophyte

Plants; Flowers

A flowering plant, or any of its closest relatives, such as the Bennettitales, Gnetales, or Pentoxylales.

apical meristem

Plants; Flowers

Group of cells at the growing tip of a branch or root. It divides cells to create new tissues.

archegonium

Plants; Flowers

The organ on a gametophyte plant which produces the egg cell, and nurtures the young sporophyte.

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