Villi and microvilli increase__________?
Villi and microvilli increase__________?
A. digestion
B. assimilation
C. absorption
D. ingestion
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The characteristic which enable animals to tolerate dehydration is called__________?
The characteristic which enable animals to tolerate dehydration is called__________?
A. Osmoconformation
B. Osmoregulaton
C. Anhydrobiosis
D. AnhydrosisWhich step causes activation of catalytic site of an enzyme__________________?
Which step causes activation of catalytic site of an enzyme__________________?
A. Change in pH of the surroundings.
B. Formation of Enzyme Susstrate complex.
C. Change in the charge of the active site.
D. Change in temperatureThe single main opening of the sponge cavity is____________?
The single main opening of the sponge cavity is____________?
A. Osculum
B. Ostia
C. Spongocoel
D. None of theseWhich of the following have thickest walls?
Which of the following have thickest walls?
A. Arteries
B. Veins
C. Capillaries
D. None of theseAntibodies play important role against microorganisms and other pathogens to which type of proteins do they belong________?
Antibodies play important role against microorganisms and other pathogens to which type of proteins do they belong________?
A. Globular proteins
B. Fibrous Proteins
C. Both a and b
D. None of theseWhich of the following statement about Homeostasis is incorrect?
Which of the following statement about Homeostasis is incorrect?
A. There is a definite control system that regulates the homeostatic activities
B. Homeostatic mechanisms keep the internal environment fixed despite of wide changes in external environment
C. Because of this the fluctuations of internal environment are of extremely narrow range as compared to that of external environment
D. All are correct