Which of the following species demonstrate anisogamy a Spar

Which of the following species demonstrate anisogamy ?

a. Sparrows

b. Dogs

c. Humans

d. All of the above

e. Both b and c, but not a

Solution

Ans) Anisogamy is also called heterogamy. It is a type of sexual reproduction in which fusion of two gametes takes place results two gametes differ in size and shape.The smaller gamete in size considered to be male (sperm cell), whereas the larger size gamete is regarded as female (egg cell).The Anisogamy occurs in animals, including humans, is oogamy. Therefore ANS. of above question is e. both b and c but not a

Sparrow has not demonstrated anisogamy as it belongs to class Aves.