Question

what are different criteria used to classify animals
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Answer 1

Answer:

Every organism can be classified at 7 different levels - kingdom, phylum, class, order, family, genusand species. Each level contains organisms with similar characteristics. The kingdom is the largest group and very broad.

Answer 2

QUESTION:-

what are different criteria used to classify animals??

ANSWER:-

Criteria for animal classification are:-

1). Symmetry: Animals are radially symmetrical, bilaterally symmetrical or asymmetrical.

2). Segmentation: Animals may or may not have segmented body.

3). Appendages: Animals may have organs or parts attached to the trunk or outer body wall.

4). Skeleton: Animals may have exoskeleton or endoskeleton.

5). Embryonic development:

6) Circulatory system: Animal may have open or closed circulatory system.

7) Body cavity: Animals may be coelomate, psuedocoelomate or acoelomate.

8). Habitat: Animals may be terrestrial or aquatic. Aquatic animals may live in either fresh water or sea water.

9). Germ layers: Animals may be diploblastic or triploblastic.

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