Transpiration — Biology STD 10 — Question

Plants become cool as a result of __________.

Transpiration normally takes place in the presence of _____________

The chromosomal theory of inheritance was proposed by ________ and ________ in 1902.

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

______ is manmade compounds that have been widely used as refrigerants and in spray propellants and foam blowing.

The process of releasing an egg from the ovary is called _________.

ADP stands for ___________ .

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 negative population growth between years __________ and ___________.

_____________ is most widely used for the artificial ripening of fruits.

The blood vessel which transports blood from heart to an organ is ____________ .