What is true for Mammalia:

1. Platypus is oviparous	2. Bats have feather
3. Elephant is ovoviviparous	4. Diaphragm is absent in them

Which of the following character is not found in all the chordates:

1. Diaphragm

2. Coelom

3. Pharyngeal gill clifts

4. Dorsal nerve cord

Which gland secretes odourous secretion in mammals:

1. Bartholins

2. Prostate

3. Anal gland

4. Liver-bile

The similarity between Ascaris lumbricoides and Anopheles stephensi is:
1. Sexual dimorphism
2. Metamerism
3. Anaerobic respiration
4. Endoparasitism

In which of the following, the notochord is present in the embryonic stage?

In which animal nerve cell is present but the brain is absent:

1. Sponge

2. Earthworm

3. Cockroach

4. Hydra

Which of the following animals have scattered cells with cell–tissue grade organization:

1. Sponge

2. Hydra

3. Liver fluke

4. Ascaris

Given below are four matchings of an animal and its kind of respiratory organ:
 

The correct matchings are:

1. A and D

2. A, B, and C

3. B and D

4. C and D

Which one of the following is a matching pair of an animal and a certain phenomenon it exhibits:

1. Pheretima – Sexual dimorphism

2. Musca – Complete metamorphosis

3. Chameleon – Mimicry

4. Taenia – Polymorphism

During its life cycle, Fasciola hepatica (liver fluke) infects its intermediate host and primary host at the following larval stage respectively:

1. Redia and miracidium

2. Cercaria and redia

3. Metacercaria and cercaria

4. Miracidium and metacercaria