Biology quiz for class 9th

Woody plants carry gaseous exchange through

• Root hair

• lenticels

• epidermal cells

• stem cells

Junctions of two neurons is called

• Synapse

• junction

• synapsis

• joint

Which of the following characters can be acquired but not inherited?

• colour of skin

• size of body

• colour of eyes

• texture of hair

 In food web, flow of energy is

• non directional

• bi directional

• uni directional

• none of the above

Which source of energy is environment friendly?

• Renewable

• non-renewable

• both A & B

• None of the above

Mendel performed his experiments on ………… plant.

1. _____ is a terrestrial ecosystem . 

Chromosomes are thread like structures in the nucleus of a cell formed of DNA which carriers the ____________ .

Based on availability, natural resources are of ____ types.

What is your opinion about these question?