Health — Biology STD 10 — Question

When there is no movement of water in the cell from the outside medium, the medium is considered to be________________ to cell sap.

Minerals are ___________ resources of energy.

The unit of light absorbed by the chlorophyll during photosynthesis is the proton.

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 :
Rate of growth of population of country _______ has declined between years __________ and _________ .

The stage between Meiosis-I and Meiosis-II is called ______.

In man (human), the heart has _____ chambers.

Note the relationship between the first two words and suggest the suitable word for the fourth place.
sound : ear drum :: Dynamic balance : ……

Given below is certain structure. Write against them its functional acivity.
retina and ……………………….

Complete the following sentence with appropriate words:

Sweat formed in the sweat glands passes into the sweat duct which opens to the outside at the surface of the skin by means of ______.