Which of the following is not a bisexual animal?

Arrange the following animals in ascending order of their maximum lifespan and select the correct option:
Animal Name | Code
Butterfly | $(a)$
Crocodile | $(b)$
Swan | $(c)$
Toad | $(d)$
Parrot | $(e)$

Which of the following statements is incorrect?

Which process leads to an increase in the number of organisms?

The number of taxa exhibiting asexual reproduction is drastically reduced in higher plants (angiosperms) and higher animals (vertebrates) as compared with lower groups of plants and animals. Analyse the possible reasons for this situation.

Clones are defined as ......