41. The yellowish colored liquid component of blood that normally holds the blood cells in suspension is
- A. serum
- B. plasma
- C. water
- D. thrombocyte
Reveal Answer
42. The function of pith in plant is
- A. Absorb mineral salt and nutrient from the soil
- B. Pith, or medulla, is a tissue in the stems of vascular plants. Pith is composed of soft, spongy parenchyma cells, which store and transport nutrients throughout the plant.
- C. trap chlorophyll from the sunlight
- D. Removal of waste product from the plant
Reveal Answer
43. A pollutant that is mostly associated with acid rain is
- A. Nitrogen (IV) oxide
- B. Ozone
- C. Flourine
- D. Carbony (IV) oxide
Reveal Answer
44. What is the function of contractile vacuole in paramecium?
- A. Produces Enzymes
- B. Gets rid of excreta
- C. Stores and digest food
- D. Gets rid of excess water
Reveal Answer
45. An organism which exhibit extracellular digestion is
- A. Spirogyra
- B. Paramecium
- C. Amoeba
- D. Rhizopus
Reveal Answer
46. How many days does is used for incubation of an egg to release chick
- A. 21
- B. 22
- C. 20
- D. 23
Reveal Answer
47. The four classes of cnidarian include the following except
- A. Turbellaria
- B. Anthozoa
- C. Scyphozoa
- D. cubozoa
Reveal Answer
48. 
What would happen if solution Y is more concentrated than solution X in fig 2
- A. The level of X would rise, Y would falls
- A. The level of X would rise, Y would rise
- C. The level of X and Y stands the same
- D. The level of Y would rise, X would fall
Reveal Answer
49. Physiological adaptation to very dry conditions in animal demonstrates
- A. Xeromorphism
- B. Hibernation
- C. Aestivation
- D. Rejuvenation
Reveal Answer
50. The hormones secreted by pancreas serves to
- A. Facilitate the development of facial hairs
- B. Raise the level of calcium in the blood
- C. Lower blood glucose level
- D. Make the body react to emergencies
Reveal Answer
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