Differentiate Homoiomerous and Heteromerous lichens.

Why do farmers plant leguminous crops in crop rotations/mixed cropping?

What is plectostele? Give example.

Mention two characters shared by gymnosperms and angiosperms.

Why lateral roots are endogenous?

Compare sympodial branching with monopodial branching.

Find out the floral formula for a bisexual flower with bract, regular, pentamerous, distinct calyx and corolla, superior ovary without bracteole.

Where will you place the plants which contains two cotyledons with cup shaped thalamus?

State the protoplasm theory.

Given below is the diagrammatic representation of one of the categories of small molecular weight organic compounds in the living tissues. Identify the category shown & one blank component " X" in it.

Category	Compound
Cholesterol	Guanine
Amino acid	NH2
Nucleotide	Adenine
Nucleoside	Uracil

Why the cells of sclerenchyma and tracheids become dead?

In which season the vessels of angiosperms are larger in size, why?

How phosphorylase enzyme open the stomata in starch sugar interconversion theory?

Plant A in a nutrient medium shows whiptail disease. Plant B in a nutrient medium shows a little leaf disease. Identify mineral deficiency of plant A and B?

What are the parameters used to measure growth of plants?