資訊推薦

• 3.某個作用於剛體(rigid body)的力 ，該力對於作用點 O 的位置向量(position vector)是 ， 與 的夾角是θ ，點 O 至該力向量的垂直距離是 d，下列何者為錯誤的力矩(m
• 35. The primary role of oxygen in respiration is to(A) combine with carbon, forming CO2.(B) catalyze
• 25. The nuclear envelope breaks down at the end of(A) S phase. (B) G2 phase. (C) prophase. (D) metap
• 38. Which of the following substances is incorrectly matched with its producer?(A) aldosterone--kidn
• 36. A long-day plant will flower if(A) it is kept in continuous far-red light.(B) the duration of co
• 39. Which of the following may explain genomic imprinting?(A) post-translational modification of pro
• 40. The repeated use of insecticides may lead to the evolution of insecticide resistance in insects.
• 34. Differentiation of teeth is greatest in(A) reptiles. (B) mammals. (C) bony fishes. (D) sharks. (
• 42. Archaeopteryx(A) was a transitional form between birds and mammals.(B) had feathers and had no t
• 43. Genetic variation is the result of all but(A) the role of environment in controlling genetic exp
• 41. Biomes are(A) recognized on the basis of the dominant animal life.(B) all of the populations of
• 37. The first plants arose during the __________ era.(A) Cenozoic (B) Mesozoic (C) Paleozoic (D) Pre
• 46. Which of the following statements about movement corridors is true?(A) A movement corridor conne
• 47. Which of the following combination is correct?(A) Porifera – coelomate, branch radial.(B) Nemato
• 44. Consider a field plot containing 200 kg of plant material. How many kg of carnivore production c
• 48. A person suffering from AIDS would be unlikely to suffer from which of the following diseases?(A
• 49. The vascular system of a three-year-old dicot stem consists of(A) 3 rings of xylem and 3 of phlo
• 50. Within the female gametophyte, three mitotic divisions of the megaspore produce(A) the triple fu
• 52. Which of the following is correctly paired?(A) forebrain – diencephalons (B) midbrain – cerebell
• 51. A pathogenic fungus invades a plant. Which of the following does the plant produce in response t
• 45. The most common pattern of dispersion in nature is(A) random. (B) uniform. (C) indeterminate. (D
• 53. Which of the following statements is false?(A) Estuaries support many semiaquatic species.(B) Ma
• 56. Which of the following is true in the logistic model of population growth?(A) as N approaches K,
• 55. Which of the following does not have a coefficient of relatedness of 0.5 in humans?(A) a brother
• 57. The population cycle of the snowshoe hare and its predator indicates that(A) predators are not t