TAXONOMY Lower 6 science

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TAXONOMY Lower 6 science

KINGDOM PLANTAE

1. EVOLUTION
  • There are over 280,000 species of plants on Earth.
  • They are estimated to have evolved from green algae 450-630 million years ago.
  • The fist plants to evolve where similar to mosses and reproduced using spores, an adaptation to being on land.
  • Over time, selection favored plants that could tolerate dry land which lead to seed evolution.
  • Plants with true seeds evolved around 390-320 million years ago.
  • As selection began to favor plants with seeds anew adaptation was seen, flowers and fruits, around 130-200 million years ago.
  • Some flowering plants have adapted to live back in the aquatic environment from wince they first evolved (aquatic angiosperms).

 

par Claude Foumtum
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