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Diversity In Living Organisms
What are the major divisions in the plantae? What is the basis for these divisions?
Major divisions in kingdom plantae are—
(i) Thallophyta
(ii) Bryophyta
(iii) Pteridophyta
(iv) Gymnosperms
(v) Angiosperms.
Basis for classification plantae division :
1. Whether the plant body has well differentiated, distinct components is the basis for the first level of classification.
2. Whether the differentiated plant body has special tissues for the transport of water and other substances within it forms the basis for the second level of classification.
3. Whether the plants bear the seeds forms the next level of classification.
4. Whether the seeds are enclosed within fruits.
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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.
Why a method of classification of animals proposed by Aristotle was not accepted ? Explain with example.
What do you mean by ‘characteristics’? Explain with example.
How hierarchy of classification be built?
Which do you think is a more basic
characteristic for classifying
organisms?
(a) the place where they live.
(b) the kind of cells they are
made of. Why?
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