Non-Chordata

What is the relationship between germinal layers and the formation of body cavity in case of coelomate, acoelomates and pseudocoelomates?

Name the following animal with cnidoblasts.

Give the characteristic features of the following citing one example of each

Urochordata and cephalochordata

Give the characteristic features of the following citing one example of each

Chondrichthyes and Osteichthyes

Differentiate between:

Polyp and medusa

Differentiate between:

Notochord and nerve cord

Differentiate between:

Acoelomate and pseudocoelomate

Match the following

Fill up the blank spaces appropriately

Sort out the animals on the basis of their symmetry (radial or bilateral) coelenterates, ctenophores, annelids, arthropods, and echinoderms.

What is the role of radula in molluscs?

Mention one example each for animals with chitinous exoskeleton and those covered by a calcareous shell.

Mention two modifications in reptiles required for terrestrial mode of life.

Give one example each for an animal possessing placoid scales and that with cycloid scales.

Which group of chordates possess sucking and circular mouth without jaws?

What is the role of feathers?

What is metagenesis? Mention an example which exhibits this phenomenon.

What is the importance of pneumatic bones and air sacs in Aves?

Identify the phylum in which adults exhibit radial symmetry and larva exhibit bilateral symmetry.

Match the column A with column B and choose the correct option