Question

Locomotion is considered as an important characteristics of the animals. However, animals
belonging to Ponfera are said to be sedentary. Every other phylum bas typical locomotory organs. E.g.
Nereis crawls with the help of parapodia, whereas earthworm buries in soil by setae. Spiders have four
pairs of walking legs, crab has five while all insects have three pairs of walking legs. The walking legs
are also called appendages. Starfish moves with the help of tube feet. Snails and bivalves use muscular
foot for locomotion Birds flying with their spread out wings and fish swimming with their fins, both
have spindle-shaped body tapering at both the ends. While flying or swimming such body offers least
resistance during locomotion. Mammals have two pairs of limbs while animals like snakes are
limbless. Other animals belonging to the class of snakes also have very weak limbs which make them
crecp on the ground

1) What are the locomotory organs in phylum Annelid?
2) Which phylum has a characteristic of jointed appendages?
3) Which the locomotory organ of animals belong to phylum mollusca?
4) Which class of animals show weak legs?
5) In which class of animals the fore-limbs are modified?

plz tell me fast ​

Answer 1

Answer:

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