Tài liệu, ebook Khoa Học Tự Nhiên

Describe the conflicting demands that may accompany species conservation Define biodiversity hot spots and explain why they are important Define zoned reserves and explain why they are important Explain the importance of bioremediation and biological augmentation of ecosystem processes in restoration efforts

114 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 1083 | Lượt tải: 0

Distinguish between the following pairs of terms: primary and secondary production, production efficiency and trophic efficiency Explain why worldwide agriculture could feed more people if all humans consumed only plant material Describe the four nutrient reservoirs and the processes that transfer the elements between reservoirs

107 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 1003 | Lượt tải: 0

Define an ecological niche and explain the competitive exclusion principle in terms of the niche concept Explain how dominant and keystone species exert strong control on community structure Distinguish between bottom-up and top-down community organization Describe and explain the intermediate disturbance hypothesis

126 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 1107 | Lượt tải: 0

Explain how limited resources and trade-offs may affect life histories Compare the exponential and logistic models of population growth Explain how density-dependent and density-independent factors may affect population growth Explain how biotic and abiotic factors may work together to control a population’s growth

118 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 1148 | Lượt tải: 0

Explain how a body of water or mountain range might affect regional climatic conditions. Define the following terms: photic zone, aphotic zone, benthic zone, abyssal zone, thermal stratification, thermocline, seasonal turnover, climograph, disturbance. List and describe the characteristics of the major aquatic biomes.

72 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 1303 | Lượt tải: 0

Describe how cross-fostering experiments help identify the relative importance of environmental and genetic factors in determining specific behaviors. Describe optimal foraging theory. Define and distinguish among promiscuous, monogamous, and polygamous mating systems. Distinguish between intersexual and intrasexual selection.

79 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 1052 | Lượt tải: 0

Explain the role of mechanoreceptors in hearing and balance. Give the function of each structure using a diagram of the human ear. Explain the sliding-filament model of muscle contraction. Explain how a skeleton combines with an antagonistic muscle arrangement to provide a mechanism for movement.

88 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 1043 | Lượt tải: 0

Describe the structures and functions of the following brain regions: medulla oblongata, pons, midbrain, cerebellum, thalamus, epithalamus, hypothalamus, and cerebrum. Describe the specific functions of the brain regions associated with language, speech, emotions, memory, and learning.

73 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 1153 | Lượt tải: 0

Distinguish among the following sets of terms: sensory neurons, interneurons, and motor neurons; membrane potential and resting potential; ungated and gated ion channels; electrical synapse and chemical synapse; EPSP and IPSP; summation. Explain the role of the sodium-potassium pump in maintaining the resting potential.

56 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 1070 | Lượt tải: 0

Describe the role of the extracellular matrix in embryonic development. Describe two general principles that integrate our knowledge of the genetic and cellular mechanisms underlying differentiation. Explain the significance of Spemann’s organizer in amphibian development. Explain pattern formation in a developing chick limb.

68 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 1030 | Lượt tải: 0