Which hormone is released by the adrenal gland to prepare the body for a 'fight or flight' response?

Goitre, a condition where the neck appears swollen, is caused by the deficiency of iodine required for the synthesis of:

What is the correct pathway of a reflex arc?

In the context of plant movements, roots growing downwards is an example of:

The thinking part of the human brain, responsible for memory, intelligence, and voluntary actions, is the:

Which plant hormone promotes cell division and is found in high concentrations in fruits and seeds?

The wilting of leaves and dormancy of buds in plants is caused by which growth-inhibiting hormone?

Involuntary actions like blood pressure, salivation, and vomiting are controlled by the:

A deficiency of which hormone leads to diabetes mellitus, a condition characterized by high blood sugar levels?

[PYQ 2021-22] Identify the type of reactions occurring in step 1 and step 2. Step 1: Limestone --(Heat)--> X + CO₂. Step 2: X + H₂O --> Slaked lime.

Which of the following is a secondary sexual characteristic observed in boys but NOT in girls during puberty?

The process of DNA copying is essential for reproduction. What is the primary significance of the variations that arise during this process?

Plasmodium, the malarial parasite, divides into many daughter cells simultaneously within a cyst. This mode of asexual reproduction is called:

A student observes that a potato tuber kept in a basket has started to grow small green shoots from its 'eyes'. This is an example of:

Which of the following is a major advantage of sexual reproduction over asexual reproduction?

Why are the testes located outside the abdominal cavity in the scrotum in human males?