Define reproduction and mention its types.

Define fermentation and mention its types .

Define fossilization and mention its types

Define productivity and mention its units (b) Describe the types of primary productivity. (c) Distinguish between GPP and NPP.

Define heterochromatin, mention its types.

Answer the following Define chromosome and mention its types on the basis of position of centromere.

Define mutagens and mention its types.

Define disease and mention its types.

Define humidity and mention its types

Define natural selection. Mention its types.

Define productivity . Mention the two types of productivity.