Science (English Medium) इयत्ता ११ - CBSE Question Bank Solutions for Biology

Try to collect all the currently accepted meanings for the word ‘species’. Discuss with your teacher the meaning of species in the case of higher plants and animals on one hand and bacteria on the other:

Define and understand the following term:

Phylum 

Define and understand the following term:

Class

Define and understand the following term:

Family

Define and understand the following term:

Order 

Define and understand the following term:

Genus

Illustrate the taxonomical hierarchy with suitable examples of a plant and an animal.

State the economically important uses of heterotrophic bacteria.

State the economically important uses of archaebacteria.

What is the nature of cell-walls in diatoms?

Find out what do the terms algal bloom signify.

Find out what do the terms red-tides signify.

When and where does reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm?

Both gymnosperms and angiosperms bear seeds, then why are they classified separately?

How is pinnately compound leaf different from palmately compound leaf?

Explain with suitable examples the different types of phyllotaxy?

How do the various leaf modifications help plants?

State the location and function of different types of meristems.

Distinguish between Cardiac muscle and striated muscle

What are gums made of ? Is fevicol different ?