Human Population — Biology STD 10 — Question

Name the following:
Movement of molecules from a region of high concentration to a region of low concentration.

Rewrite the terms in the correct order so as to be in a logical sequence.
Puberty, menopause, menstruals, menarche, reproductive age.

Name the following:
Paired lobes of the brain related to the sense of smell.

Name an insecticide?

Name the following:
Two solutions having same concentrations.

Name the Following
The type of gene which is not expressed in the presence of a contrasting allele.

A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.
Why was the plant kept in the dark before the experiment?

Give Technical Term:
The waste product which is excreted by the liver.

What is the other name of Bleeder's disease?

Give Technical Terms: The vaccine that helps to produce immunity against polio.