NEET UG 2015 — Animal Kingdom

Which of the following animal is not viviparous?

Select the option from the following having matching characteristics for the mentioned group without any exception:

A jawless fish, which lays eggs in freshwater and whose larvae after metamorphosis return to the ocean is

The chitinous exoskeleton of arthropods is formed by the polymerization of:

Metagenesis refers to:

Which of the following endoparasites of humans does show viviparity?

Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum:

Which of the following characteristics is mainly responsible for the diversification of insects on land?