Assertion (A): Sympathetic nervous system prepares the body for violent action against abnormal conditions.

Reason (R): Sympathetic nervous system accelerates heartbeat.

Which of the following is correct?

1. Both A and R are True
2. A is True, R is False
3. A is False but R is True
4. Both A and R are False

Birth rate is the number of live births per thousand persons in:

1. 1 year
2. 2 years
3. 10 years
4. 20 years

Name the following:

(a) Unicellular outgrowths from the epidermis of roots.

(b) A defect in our eyes, in which some parts of the object are in focus while the other parts are blurred.

(c) The tropic movement of plant parts in response to chemicals.

(d) The main nitrogenous waste formed in the body.

(e) The process of attachment of fertilized ovum to the wall of uterus.

Arrange and rewrite the terms in each group in the correct order to be in a logical sequence beginning with the term that is underlined:

(a) Australopithecus, Cro-Magnon, Homo erectus, Neanderthal man.

(b) Pupil, Aqueous humour, Retina, Vitreous humour.

(c) Effector, Receptor, Motor neuron, Sensory neuron.

(d) Loop of Henle, Distal convoluted tubule, Bowman’s Capsule, Proximal convoluted tubule.

(e) Water vapour, Soil water, Leaves, Ascent of Sap