Endocrine System — Biology STD 10 — Question

Assertion (A): The pancreas is both an endocrine and exocrine gland
Reason (R): It secretes insulin and glucagon into the bloodstream to regulate blood sugar levels.

The nuclear membrane disappears in

The equatorial plane is formed during:

Assertion (A): Endocrine glands are ductless and release hormones directly into the bloodstream.
Reason (R): Endocrine glands, like the pituitary gland located at the base of the brain, lack ducts and use the circulatory system to reach target organs.

Thrombocytes help in blood clotting by producing

A plant cell placed in a certain solution got plasmolysed. What was the kind of solution?

A substance that cannot pass through semipermeable walls of glomerulus under normal conditions is:

Gestation period of human foetus is:

A muscular wall is absent in:

Crossing over is a feature of _______________