The difference between male and female $Anopheles$ occurs in:

Which of the following is incorrect?

Which of the following represents a correct match of a somatic feature and the animal possessing it?

Which of the following statements are true or false?
$(i)$ Suckers are found in liver fluke.
$(ii)$ In Arthropods,fertilization is external.
$(iii)$ Chordata is divided into $4$ subphyla.
$(iv)$ Water vascular system is present in Hemichordata.

Which type of asexual reproduction is $NOT$ observed in organisms belonging to the phylum Protozoa?

$Peripatus$ is a connecting link between