Cell Division — Biology STD 10 — Question

Complete the table given below by filling the blanks numbered (i) to (viii).

Gland	Hormone Secreted	Effect on Body
(i)	(ii)	Regulates basal metabolism
Pancreas ( beta-cells)	(iii)	(iv)
(v)	(vi)	Increases heart beat
(vii)	Thyroid stimulating hormone	(viii)

Meninges: ______

Plants become cool as a result of __________.

Thermal power plants give out a lot of ________ waste water.

_________ helps in blood clotting.

Given below are hypothetical figures in regard to population (in crores) of two countries A and B during the last three decades.

Country	1971	1981	1991
A	6.4	9.6	10.6
B	15.7	15.7	15.3

Fill in the blanks :The country _________ shows zero population growth between years __________ and __________.

Complete the following statements: The bending movements of certain flowers towards the sun and the sleep movements of certain plants at night are examples of ________ .

Transpiration normally takes place in the presence of ___________.

Radiant energy is converted into chemical energy by photosynthesis.

Pregnancy can be avoided by using ______.