HSC Science (General) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions for Biology

Give an account of any two biotic agents for pollination along with their adaptations.

______ is a mineralocorticoid secreted by Adrenal gland.

Give an account of various abiotic agencies used in pollination along with their adaptations for pollination.

Describe any two hormones produced by the ovaries.

Name the glucocorticoid used in treatment of allergy and why?

Answer the questions after observing the diagram given below.

1. What acts as the first messenger?
2. Why can’t hormones like catecholamines enter their target cells through plasma membrane?
3. Name the mode of hormone action shown in the diagram.

Write a note on the four different kinds of cell in Pancreas.

A particular species of plant produces light, non-sticky pollen in large numbers and its stigmas are long and feathery. These modifications facilitate pollination by ______.

Which one of the following may require pollinators, but is genetically similar to autogamy?

What is ornithophily?

Describe any three adaptations in anemophilous flowers.

Mention any one example of the anemophilous flower.

Describe any three adaptations in hydrophilous flowers.

Mention any one example of the hydrophilous flower.

What is hypohydrophily?

What is epihydrophily?

______ is responsible for increase in blood glucose.

Give any four floral adaptations for chiropterophily.

What are the major abiotic factors that influence habitat?

Give an account of secretion of various parts of Adrenal cortex.