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Population & Species

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Sonia Patel

on 13 May 2011

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Transcript of Population & Species

Population and &Species Populations A group of individuals of the same species occupying a particular geographic area. Species A group of organisms having many characteristics in common and ranking below the genus. Of Plants & Animals Ferns are vascular plants that produce spores instead of seeds. Fern species live in a wide variety of habitats, from remote mountain elevations, to dry desert rock faces, to bodies of water or in open fields. Plant Kingdom Ferns Mosses are small plants that are 1-10 cm tall, and usually grow in damp, dark places. They are non-vascular and produce spores. They have no internal water bearing veins, so they do not produce flowers. Moss They are primarily autotrophic organisms, and they lack the traits that make up. They use photosynthesis, but they are “simple” because their tissue are not organized into organs. Algae Are derived from gymnosperms 245-202 million years ago. They have flowers, and are seed producing plants you are familiar seeing every day, such as trees Angiosperms- Seed producing plants that angiosperms derived from, but they do not have flowers. Their name means “naked seed” because their seeds are not surrounded. Gymnosperms Animal Kingdom Protozoa The diverse group of eukaryotic organisms. They seen as the counterpart to the protists which use photosynthesis. Invertebrae A type of metazoa along with vertebrates. They make up 98% of all animals.They are animals with no backbone, including insects and worms, and other things. Vertebrae They are a type of metazoa along with invertebrates. They have backbones and spinal cords, and about 58,000 species have been discovered, only 2% of all the worlds metazoan are vertebrates. Symbiosis In symbiosis, at least one member of the pair benefits from the relationship. The other member may be:

injured ( = parasitism) Head lice on humans, feeding on blood.

relatively unaffected ( = commensalism) The cattle egret, a type of bird, lives in livestock yards
and eats insects stirred up by the livestock.

may also benefit ( = mutualism) Bees get the nectar from flowers to create honey, and in turn,
spreads pollen around to help seeds sprout.
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