HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions for Biology

Hyper secretion of growth hormone in childhood cause ______.

Which type of blood flows through pulmonary veins?

Identify the pulse point ‘A’ from below given diagram.

How a portal vein differs from normal vein?

With the help of neat and labelled diagrams artery and vein.

State the names of hormones and glands secreting them:

Growth of thyroid gland.

State the names of hormones and glands secreting them:

Controls tubular absorption of water in the kidney.

Name two hormones of adenohypophysis.

Differentiate between an artery and a vein with reference to lumen and thickness of wall.

Where is pituitary located?

Match the hormones with their source :

Identify the mismatched pair.

Name the gland that causes following disorder:

Acromegaly

Distinguish between long-day and short day plants.

Which natural cytokinin is obtained from unripe maize grain?

Name the hormones secreted by adenohypophysis.

Give reason Arterial walls are thicker than those of veins.

Which of the following is NOT an example of connecting link?

1. Archaeopteryx
2. fchthyostegia
3. Seymouria
4. Biston betularia

What is criss-cross inheritance?

Describe the roles of pituitary and ovarian hormones during the menstrual cycle in a human female.