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

Sycon belongs to a group of animals, which are best described as:
 

In Hydra, waste material of food digestion and nitrogenous waste material are removed from:
1.  Mouth and mouth
2.  Body wall and body wall
3.  Mouth and body wall
4.  Mouth and tentacles