Question

Revise and recall
Match the following:
Column A
(a) Earthworm
(b) Fish
(c) Bird
(d) Snake
(e) Cockroach
(1) Snail
Column B
(1) Thick muscular foot
(i Hollow bones
Gii) Fins
(iv) Six jointed legs
(v) Segments and setae
(vi) Scales, backbone and ribs​

Answer 1

Required Answer:

• (a) Earthworms → (v) Segments and setae

• (b) Fish → (iii) Fins

• (c) Bird → (ii) Hollow bones

• (d) Snake → (vi) Scales, backbone and ribs

• (e) Cockroach → (iv) Six jointed legs

• (f) Snail → (i) Thick muscular foot

$\tt {\underline {\large Explanation :- }}$

(a) Earthworms → (v) Segments and setae

• Earthworms have body made made up of small rings joined together that are called segments. Also, it has a large number of tiny, hair like bristles called setae. Setae are joined to muscles.

(b) Fish → (iii) Fins

• Fish forelimbs and hind limbs of fishes are called fins. Fins help in maintaining balance in water.

(c) Bird → (ii) Hollow bones

• Birds have hollow and light bones which helps them to cut through air easily. Their body is well suited for flying.

(d) Snake → (vi) Scales, backbone and ribs

• Snakes have a long backbone and ribs on which muscles are attached. Snakes have number of ventral scales on the under side of their body.

(e) Cockroach → (iv) Six jointed legs

• Cockroaches have 3 pairs of legs or we can say that 6 jointed legs. Cockroaches keeps only 3 legs on the ground at one time and the other three legs next.

(f) Snail → (i) Thick muscular foot

• Snails have thick muscular foot and soft body. There are strong muscles in its foot which help them to glide.

Answer 2

Answer:

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