__________ is tough and thick white sheath that protect the inner parts of the eye.

(a)

sclera

(b)

conjunctiva

(c)

cornea

(d)

iris

Maintenance of constant internal environment of the body is known as _________

(a)

Homeostasis

(b)

Homeophytes

(c)

Homeokinesis

(d)

Homeophilics

In the absence of oxygen, glucose is broken down in to ________.

(a)

Lactic acid

(b)

Citric acid

(c)

Acetic acid

(d)

Nitric acid

The process of air passing in and out the lungs is called ___________.

(a)

Inhalation

(b)

Exhalation

(c)

Breathing

(d)

None of these

The erythrocyte is placed in _________ solution which has lesser concentration of solutes and greater concentration of water than in the cytoplasm.

(a)

Hypotonic

(b)

Hypertonic

(c)

Neutral

(d)

Acidic