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Biology

31)Bitter taste buds on human tongue lies
on the tip of the tongue on the side of the tongue
on the centre of the tongue on the back of tongue
Answer :

32)Sweet taste buds on human tongue lies
on the tip of the tongue on the side of the tongue
on the centre of the tongue on the back of tongue
Answer :

33)Sour taste buds on human tongue lies
on the tip of the tongue on the side of the tongue
on the centre of the tongue on the back of tongue
Answer :

34)The white components present in excreta of lizards and birds is
uric acid urea
creatinine calcium
Answer :

35)The sex of a child is determined
6-7 weeks after conception at the time of fertilization of ovum
at the time of sperm\'s entry in the second months of pregnancy
Answer :

36)Human body\'s thermostat is
pituitary gland thyroid gland
pineal gland hypothalamus gland
Answer :

37)The sterilization operation of male is called
spermectomy hysterotomy
gametectomy vasectomy
Answer :


38) Which one of the following agents causes birth defects?
mutagens teratogens
absortogens pathogens
Answer :

39)The centre of balance of human body lies in the
cochlea semicircular canals
middle ear bone cochlea and semicircular canals together
Answer :

40)The plants that flower once in their life are called
monogenic monogamous
monocarpic monomorphic
Answer :

41)Plant that has largest flower
sunflower Zinnia
rafflesia chrysanthemum
Answer :

42)Pollination done by insects is called
entomophily anemophily
hydrophily none of these
Answer :

43)Number of chromosome in human body cell
23 24
46 48
Answer :

44) The universal recipient blood group is
A+ AB-
AB+ A-
Answer :

45)The universal donor blood group is
AB AB-
O O-
Answer :

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