Question # 1

The lens found in human eye is:

Concave

Convex

Both a and b

None of these

In plants, gaseous exchange takes place as:

CO2 is removed and O2 is absorbed

CO2 is absorbed and O2 is removed

CO2 and O2 both are absorbed

CO2 and O2 both are removed

Point out the FALSE statement about respiration.

Gases can easily pass through the walls of the alveoli

Gas exchange in lungs is very efficient because lungs provide large surface area

In emphysema, the walls of alveoli break and there is more surface area.

Dust particles can damage the lung by irritating the inner alveoli surface.

Largest unit of Ecology is.

Species

Community

Ecosystem

Biosphere

The plant which have broad leaves and a large.

Hydrophytes

Xerophytes

Halophytes

Bryophytes

The male reproductive part if flower is:

Stigma

Stamen

Ovary

Carpel

Biology Life Science Test Easy Mode MCQs With Answers