Author: admin

39. Eutrophication refers to an aging process from a: (A)Low-production ecosystem to a high-production ecosystem due to availability of excess nutrients (B) High-production ecosystem to a low-production ecosystem due to […]

38. During El Niño: (A) Cold water of the north-flowing Peru Current is displaced by a low-nutrient warm southward current (B) Warm water of the north-flowing Peru Current is displaced […]

37. The CORRECT sequence of evolution (simplest to complex) is: (A) Algae → Bryophytes → Ferns → Angiosperms (B) Algae → Ferns → Bryophytes → Angiosperms (C) Bryophytes → Ferns […]

36. Which one of the following statements is NOT correct? (A) In the Northern Hemisphere many mammals hibernate in winter (B)The vegetation in Tundra is predominantly herbaceous (C) The dominant […]

35. An archaeological sample (remains of an animal) containing 14C isotope of Carbon is found to give 10 beta decays per minute per gram of Carbon. It is known that […]

34. In a population growing according to the logistic growth model (A) individuals reproduce according to their physiological capacity (B) the per capita rate of increase approaches zero as the […]

33. Which one of the following most accurately describes the process of natural selection?  (A) Selection of one species over a competing species (B) Selection of individuals that successfully defend […]

32. A piece of charcoal, containing 36 grams of Carbon, found in ancient ruins shows a 14C activity of 300 decays/min. The tree, from which this charcoal came, has been […]

31. Match the entries in Group I with the entries in Group II Group I                                […]