Question

1. Listed below are eleven characteristics
Column I and the five classes (a-e) of no
in Column II. Match at least tw
un ll. Match at least two characteristics
with each class.
Column 1(numbers 1to11)
Column II(Roman numbers)
(Characteristics)
(Classes)
(i) Three chambered heart (a) Pisces
(ii) Feathers
(iii) Two-chambered heart
(iv) Eardrum in a pit
(b) Amphibia
Scales
(vi) External ears
(vii) Gills
(c) Reptilia
(viii) Moist skin
(ix) Horny scales on skin
Homeothermal
(d) Aves
(xi) Testes in scrotum
(e) Mammalia
​

Answer 1

Answer:

a)Pisces -

iii) two chambered heart

v) scales

vii) gills

viii) moist skin

b)Amphibia -

i) three chambered heart

vii) gills

viii) moist skin

c)Reptilia -

v) scales

ix) horny scales on skin

d)Aves -

ii) feathers

All except pisces have external ears.

Pisces have eardrums in a pit.