Q.30 Which of the following is of economic importance to man:
A) Daphnia.
B) Millipede.
C) Silkworm.
D) Scorpion.
Q.31 The name Nicotiana tabacum is given to:
A) Potato.
B) Tomato.
C) Red pepper.
D) Tobacco.
Q.32 Family Gramineae has:
A) Only wheat.
B) Only corn.
C) Only rice.
D) All of the above.
Q.33 During swallowing the food travels from oral cavity to the stomach by way of
esophagus:
A) Very quickly.
B) By anti-peristalsis.
C) Pushed down by pharynx.
D) Moving due to peristalsis.
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Q.34 The pancreas is a:
A) Part of Stomach.
B) Part of Small intestine.
C) Part of Large intestine.
D) Separate gland.
Q.35 The term chyme is applied to:
A) Semi-digestive food in oral cavity.
B) Semi-solid food in stomach.
C) Semi-digested food in the small
intestine.
D) Completely digested food in the
last part of small intestine.
Q.36 Villi and micro villi are present:
A) In pharynx.
B) In small intestine (jejunum).
C) In esophagus.
D) In large intestine.
Q.37 Exchange of gases during organism respiration is carried out by:
A) Diffusion.
B) Active transport.
C) Osmosis.
D) Facilitated diffusion.