Question

(11) Give reasons:
(a) Animals of phylum platyhelminthes are called flatworms.
(b) Bryophytes are called amphibians of the plant kingdom.
(C) Fungi are called saprophytes.
(d) Plants like Pinus and Deodar are called gymnosperms.
(e) Bacteria and tapeworms are very different in their body design.
(f) We keep both snake and turtle in the same class.
(g) Frogs use both skin and lungs for breathing.
(h) Forelimbs of birds are modified.
(i) Echidna and Platypus lay eggs but are considered as mammals​

Answer 1

Answer:

a) bcoz their body is dorsoventrally flattened

b) bcoz they live in shaddy, moist places and need water for fertilization of gametes hence for survival

c)bcoz they live on dead decaying matter.

d)gymnospers is the division under kingdom plantae..they are characterized by seeds without coating of fruit and absence of flower..

f)they show similarity in character such as oviparity,cold blooded, 3 chambered heart..

g) they use skin when they hibernate in winter else they use lungs it's an adaptation..

h) forelimb are modified into wings..it is also an adaptation for survival

i) they are connecting links as they show other characters similar to Mammalia they are considered to be mammals