21.

The Statements given below are false. Rewrite the correct form of the statement by changing the word which is underlined:

Cretinism is caused due to deficiency of Adrenaline.

Rewrite and complete the following sentences by inserting the correct word
in the space indicated:

The phenomenon of loss of water through a cut stem or injured part of plant is
called __________.

Give the biological/technical terms for the following:

i A mixture of smoke and fog.

Give the biological/technical terms for the following:

ii. Capacity of our body to resist disease.

Give the biological/technical terms for the following:

iii. Fixing of developing zygote on the uterine wall.

Give the biological/technical terms for the following:

iv. The permanent stoppage of menstruation at about the age of 45 years in a
female.

Give the biological/technical terms for the following:

v. The hormone increasing reabsorption of water by kidney tubules.

Give the biological/technical terms for the following:

vi. A thin membrane covering the entire front part of the eye.

Give the biological/technical terms for the following:

vii. The lens of eye losing flexibility resulting in a kind of long-sightedness in middle-aged people.

Give the biological/technical terms for the following:

viii. The number of persons living square kilometer at any given time.