Tài liệu, ebook Khoa Học Tự Nhiên

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: 856 | 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: 827 | Lượt tải: 0

Describe oogenesis and spermatogenesis; describe three major differences between them. Explain how the uterine and ovarian cycles are synchronized and describe the functions of the hormones involved. List the various methods of contraception, how each works. Describe techniques that allow us to learn about the health and genetics of a fetus.

89 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 918 | Lượt tải: 0

Describe and compare the protonephridial, metanephridial, and Malpighian tubule excretory systems. Using a diagram, identify and describe the function of each region of the nephron. Explain how the loop of Henle enhances water conservation. Describe the nervous and hormonal controls involved in the regulation of kidney function.

63 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 818 | Lượt tải: 0

Describe clonal selection and distinguish between effector cells and memory cells. Describe the cellular basis for immunological memory. Explain how a single antigen can provoke a robust humoral response. Compare the processes of neutralization and opsonization.

84 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 903 | Lượt tải: 0

Describe the role played by the lymphatic system in relation to the circulatory system. Describe the function of erythrocytes, leukocytes, platelets, fibrin. Distinguish between a heart attack and stroke. Discuss the advantages and disadvantages of water and of air as respiratory media.

97 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 930 | Lượt tải: 0

Follow a meal through the mammalian digestive system: List important enzymes and describe their roles Compare where and how the major types of macromolecules are digested and absorbed Relate variations in dentition with different diets. Explain where and in what form energy-rich molecules may be stored in the human body.

80 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 1310 | Lượt tải: 0

Compare and contrast the nervous and endocrine systems. Define thermoregulation and explain how endotherms and ectotherms manage their heat budgets. Describe how a countercurrent heat exchanger may function to retain heat within an animal body. Define bioenergetics and biosynthesis. Define metabolic rate and explain how it can be determined for...

68 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 905 | Lượt tải: 0

Explain the advantages and disadvantages of reproducing sexually and asexually. Name and describe several natural and artificial mechanisms of asexual reproduction. Discuss the risks of transgenic crops and describe four strategies that may prevent transgene escape.

71 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 857 | Lượt tải: 0

Explain how a nutrient’s role and mobility determine the symptoms of a mineral deficiency. Summarize the ecological role of each of the following groups of bacteria: ammonifying, denitrifying, nitrogen-fixing, nitrifying. Describe the basis for crop rotation. Distinguish between ectomycorrhizae and arbuscular mycorrhizae. Describe the adaptatio...

61 trang | Chia sẻ: nguyenlam99 | Ngày: 11/01/2019 | Lượt xem: 898 | Lượt tải: 0