Question

PLZ ANSR THIS.... AND DON'T SPAM OTHERWISE U WILL B REPORTED....

BIOLOGY OF CLASS 9 ​

Answer 1

Answer:

Explanation:

2)

1. reptilia

2. aves

3. amphibia

4. condrichthytes

5. mammalia

6. mammalia

7. reptilia

Answer 2

Answer:

1.

(i) Two chambered heart - (a) Pisces

(v) Scales - (a) Pisces

(vii) Gills - (a) Pisces + (b) Amphibia (at a particular period of life)

(i) Three chambered heart - (b) Amphibia

(ix) Horny scales on skin - (c) Reptilia

(viii) Moist skin - (c) Reptilia

(ii) Feathers - (d) Aves

(x) Homeothermal - (d)Aves + (e) Mammalia

(iv) Eardurm in pit - (e) Mammalia

(vi) External ears - (e) Mammalia

(xi) Testes in scrotum - (e) Mammalia

2.

(i) Crocodile - Amphibia

(ii) Penguin - Aves

(iii) Toad- Reptilia

(iv) Shark- Chondrichthyes

(v) Whale- Mammalia

(vi) Bat- Mammalia

(vii) House lizard- Reptilia