Which of the following is not seen in a marsupial?
1. Mammary glands
2. Three middle ear bones
3. True hairs
4. Corpus callosum

As you can see from the given pie chart, over 70% of Mammalia species come from a single order. Which order of class mammalian is this?

Identify the incorrect comparison between a typical cartilaginous and a bony fish:

The diagram shows the movement of air during inhalation in birds. The maximum percentage of the inhaled air will enter into:

1. Anterior air sacs
2. Lungs
3. Posterior air sacs
4. Parabronchi

Match the types of reptilian skulls [COLUMN I] with their corresponding diagrams in COLUMN II and select the correct answer from the codes given:

	COLUMN I		COLUMN II
A	Anapsid	P
B	Synapsid	Q
C	Diapsid	R

Codes

Identify the incorrect comparison between a typical cartilaginous and a bony fish:

Totipotent cells present in the mesohyl of porifers are known as:
1. Lophocytes
2. Amoebocytes
3. Collencytes
4. Grey cells

This type of egg cannot belong to a/an:

Which of the following scaled in a fish are called as placoid?

1.
2.
3.
4.

The tunic of urochordates is composed of proteins and complex carbohydrates, and includes tunicin, which is a variety of: