1. Which of the following tissues provide control and coordination in animals ?

Muscular and Transport

Nervous and Muscular

Muscular and Skeletal

Nervous and Skeletal

Answer: Nervous and Muscular

Explanation:


2. Main function of cerebrum is ?

balancing

memory

thinking

hearing

Answer: thinking

Explanation:


3. Which plant hormone promotes cell division ?

Abscisic acid

Cytokinin

Gibberellin

Auxin

Answer: Cytokinin

Explanation:


4. Main function of cerebrum is ?

balancing

memory

thinking

hearing

Answer: thinking

Explanation:


5. The hormone which increases the fertility in males is called ?

Growth hormone

Insulin

Testosterone

Oestrogen

Answer: Testosterone

Explanation:

Testosterone is the male sex hormone. It regulates male accessory sex organs. It is responsible for secondary sexual characters like moustache, beard, etc. Thus, increasing fertility in males.


6. The growth of tendril in pea plants is due to ?

Rapid cell divisions in tendrillar cells in contact with the support

Rapid cell divisions in tendrillar cells that are away from the support

Effect of light

Effect of gravity

Answer: Rapid cell divisions in tendrillar cells that are away from the support

Explanation:

Tendrils are the thin thread-like groups on the stem or leaves of climbing plants. These are sensitive to touch of other parts objects (i.e. Thigmotropic). When a tendril touches an object, then the site in contact with object grows slowly than its other side, (i.e. Rapid cell divisions in cells that are away from the support). This causes the tendril to bend towards the object by growing towards it, wind around object and cling to it.


7. ____________ is a growth inhibiter hormone in plants ?

Gibberellic acid

Cytokinin

Abscicic acid

Auxin

Answer: Abscicic acid

Explanation:


8. Gustatory receptors will detect ______ ?

Touch

Smell

Taste

Light

Answer: Taste

Explanation:


9. A student accidentally places her hand on a flame of candle and quickly pulls her hand away. The flame represents ?

an effector

an impulse

a stimulus

a response

Answer: a stimulus

Explanation:


10. The longest fibre on the cell body of a neuron is called ?

dendrites

axon

cytoplasm

sheath

Answer: axon

Explanation: