A phenotypic character with intermediate forms that can be graded from one extreme to the other is referred to as?
The part of a domestic fowl responsible for preventing heat loss is the?
The specialized pigment cells that are involved in colouration and colour change in animals?
During the dry season in the tropics, the body metabolism of some animals slow to a minimal level in a process referred to as?
The wing of a bat and that of a bird, the flippers of a whale and the fins of s fish are example of?
