A biology teacher asked her students to give two specific characteristic features of cardiac muscles.

Neeta said: Striated and involuntary.
Nitesh said: Unstriated and unbranched.
Isha said: Striated and branched.
Kabeer said: Unstriated and voluntary.

Who were correct?

1. Neeta and Nitesh
2. Neeta and Isha
3. Isha and Kabeer
4. Nitesh and Kabeer

Deepali tried to match the kind of supporting tissues in plants with their characteristic features.
She tabulated the pairs as follows:

Identify P and Q

1. P — Collenchyma, Q — Sclerenchyma
2. P — Sclerenchyma, Q — Collenchyma
3. P — Parenchyma, Q — Sclerenchyma
4. P — Collenchyma, Q — Parenchyma

Given below is the structure of a specific cell found in the body of animals and humans. Read the information below the diagram and fill in the blanks:

The above mentioned cell is found in all the part of body but richly located in the brain and spinal cord. The tissue formed by these cells is concerned with the perception and responses of animals.

The cell shown above is the basic structural and functional unit of the (a) …………… . Each cell consists of a round or oval body, called (b) …………… containing the nucleus. It has one or more elongated hair-like extensions called (c) …………… or …………… . One of these extensions is very long and is termed as (d) …………… . Many of these extensions are bundled together to form a (e) …………… .

Name the kind of tissue found

1. At the tip of plant roots
2. At the lower surface of leaf
3. In the inner lining of intestine
4. At the joint between two long bones
5. In the walls of the veins of leaves
6. As gritty masses in the skin of pears