Among China rose, mustard, brinjal, potato, guava, cucumber, onion and tulip, how many plants have superior ovary?

1. Five

2. Six

3. Three

4. Four

Name the pulmonary disease in which alveolar surface area involved in gas exchange is drastically reduced due to damage in the alveolar walls.

1. Pleurisky

2. Emphysema

3. Pneumonia

4. Asthma

A column of water within xylem vessels of tall trees does not break under its weight because of?
1. Dissolved sugar in water
2. Tensile strength of water
3. Lignification of xylem vessels
4. Positive root pressure

Acid rain is caused by increases in the atmospheric concentration of?

1. $S{O}_2$ $and$ $N{O}_2$

2. $S{O}_3$ $and$ $CO$

3. $C{O}_2$ $and$ $CO$

4. $O_3$ $and$ $dust$

The enzyme that is not present in succus entericulus is?

1. maltase.

2. nucleases.

3. nucleosidases.

4. lipases.

In which of the following interactions both partners are adversely affected?

Match the following list of microbes and what they are used for:

1. A-3, B-4, C-1, D-2

2. A-4, B-3, C-2, D-1

3. A-4, B-2, C-1, D-3

4. A-3, B-1, C-4, D-2

A pleiotropic gene:

A protoplast is a cell:

1. Without plasma membrane

2. Without nucleus

3. Undergoing division

4. Without cell wall

Which of the following are most suitable indicators of SO₂ pollution in the environment?
1. Lichens
2. Conifers
3. Algae
4. Fungi