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Diversity In Living Organisms
List the features of Phylum Annelida of the Animal kingdom.
Phylum Annelida (segmented worm)
Main Features:
(i) They have elongated and segmented body.
(ii) Body bears lateral appendages for locomotion in the form of chitinous Setae or Parapodia.
(iii) The body is bilaterally symmetrical and triploblastic.
(iv) Reproduction by sexual means. Sex may be separate or hermaphrodite (both sexes in the same individual).
(v) They are the first animals with true coelom (body cavity).
Examples. Pheretima (earthworm), Hirudinaria (cattle leech) and Nereis.
Annelida.
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Explain the basis for grouping organisms into five kingdoms.
What are the major divisions in the plantae? What is the basis for these divisions?
How are the criteria for deciding divisions in plants different from the criteria for deciding the subgroups among animals?
Explain how animals in vertebrata are classified into further subgroups.
Name the biggest animal and the tallest tree.
What is classification?
Name the branch of science which deals with classification.
Why do we classify organisms?
Give three examples of the range of variations that you see in life form around you.
What was the basis of animal classification done by Aristotle.
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