1.

List out the common characters of animals.

Answer»

1. On the basis of germ layers all animals will be diploblastic (ectoderm and endoderm) or triploblastic (outer ectoderm, middle mesoderm, and inner endoderm). 

2. Animals show symmetry. They may be radially symmetrical or bilaterally symmetrical. Few animals like sponges lack symmetry.

3. Most animals possess a body cavity between the body wall and alimentary canal and is lined with mesoderm. This is called coelom. Some animals lack coelom (acoelomate) or have false coelom (Pseudocoelomate). 

4. Reproduction is seen in all animals. (asexual/sexual).



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