Question : Which of the following cells line the spongocoel and canals in members of the phylum Porifera?

Option 1: Somatic cells

Option 2: Collar cells

Option 3: White cells

Option 4: Sex cells

Question : Select the incorrect statement about Phylum Arthropoda.

Option 1: Class Insecta is the largest class of Phylum Arthropoda.

Option 2: Lignin is the main component of the exoskeletons of Arthropods.

Option 3: Over 85% of all known animal species are Arthropods.

Option 4: Phylum Arthropoda comprises a wide diversity of animals with hard exoskeletons and jointed Appendages.

Question : Which one of the following is the correct sequence of ecosystem in the order of decreasing productivity?

Option 1: Oceans, mangroves, lakes, grasslands

Option 2: Mangroves, oceans, grassland, lakes

Option 3: Oceans, lakes, grassland, mangroves

Option 4: Mangroves, grasslands, lakes, oceans

Question : Which group of Kingdom Animalia has unsegmented, bilaterally symmetrical, soft bodies, with a triploblastic construction (comprising three layers of cells) and a lacking coelom, skeleton and anus?

Option 1: Cnidaria

Option 2: Ctenophora

Option 3: Platyhelminthes

Option 4: Porifera

Question : Identify an endoparasite found in animals

Option 1: Pleurobrachia

Option 2: Ctenoplana

Option 3: Flatworms

Option 4: Adamsia