A) Jointed legs in arthropods and in mammals
B) Wings in insects, birds and bats
C) Gill-clefts in vertebrate embryo
D) Excretory organs of earthworms and frog
Correct Answer: C
Solution :
Organic evolution is process of cumulative change of living populations and in the descendent populations of organisms.You need to login to perform this action.
You will be redirected in
3 sec