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SAT BIOLOGY MCQ SET 1

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1. As people gets older, the ability of applying or maintain attention




2. The brain ____ as people gets older.




3. There is __________ in working memory as people gets older.




4. According to the philosophy of Idealism in education, the subject matter of curriculum should be




5. What trophic level is represented by the snake?




6. In the Eastern United States, many forested areas were cleared for agricultural purposes. If cultivation was abandoned in those areas, they would eventually return to forests. This is an example of




7. Which of the following represents an example of Mullerian mimicry?




8. A human cell that contains 22 autosomes and a Y chromosome must be




9. Which of the following events DO NOT lead to genetic variation in a population?




10. A special form of loose connective tissue that pads and insulates the body and stores fuel reserves is known as




11. Which of the groups below represents the correct relationship in order from smallest (or simplest) to largest (or more complex)?




12. Which of the following statement(s) is/are correct?




13. What defines the Sahara Desert as a desert?




14. Which of the following descriptions of a DNA molecule is NOT correct?




15. All of the following ideas are essential to Charles Darwin theory of natural selection EXCEPT




16. The secondary structure of proteins whose conformation may be an alpha helix is due to




17. A student cut a 2 cm3 block out of a potato and massed the block. She then placed the block in distilled water and waited an hour. If she remassed the block she could expect which of the following?




18. Red-green colorblindness in humans is a sex-linked trait. If a woman with normal vision, whose father was colorblind, married a man whose mother was colorblind, what would be the probability of their first child being a colorblind girl?




19. What are the number of different types of gametes that can be produced by an organism whose genotype is AaBbCcDd?




20. The number of chromosomes in normal humans is 46. After meiosis in sperm production, the number of chromosomes I would be _________ and the number of resulting cells would be ________.




21. Which statement is NOT true for ferns?




22. In symbiotic relationships, groups of two or more organisms live in physical proximity. Which of the following types of symbiosis depicts commensalism?




23. Competition between members of a prairie dog population could be expected to increase as a result of an increase in the




24. The rain shadow effect is used to describe rainfall around certain mountain ranges. Which of the following statement is true?




25. The enzyme that assimilates carbon dioxide into the Calvin cycle is known as




26. The separation of plant pigments using paper chromatography is based on




27. Organisms are placed in different trophic levels according to how they obtain their energy. Another name for primary consumer is




28. Some organisms living in a vacant lot include grass, dandelions, mice, grasshoppers, and slugs. Collectively these organisms represent




29. Darwins finches are a group of about twelve species of birds that live on the Galapagos Islands. The fact that they have different size beaks is regarded as a consequence of




30. Predators in an ecosystem




31. A walking stick, a type of insect that is a primary consumer, is an example of an organism using




32. The buildup of pesticides in ospreys is known as




33. An organism with the genotype AaVv can produce how many different types of gametes




34. In four-o-clocks, pink flowers are the result of a red allele and a white allele for the color gene. If you crossed a white with a pink, what would be the most likely result?




35. Donald Johanson, Tom Gray, and others discovered a hominid that lived in East Africa__________ million years ago and nicknamed her Lucy, whose scientific name they gave as __________




36. Ammonia is released from dead plants by




37. In a natural community, all the living things that directly or indirectly affect the environment are known as




38. In order to preserve the biosphere for future generations, humans must




39. Which group can best be described as a population?




40. Competition between the members of a woodchuck population in a large field could be expected to increase as a result of an increase in the




41. Let r stand for the intrinsic rate of growth, N for the number of organisms in a population, and K for the carrying capacity. A good formula for logistic growth would be?




42. Mimicry is an important biotic factor in communities all over the world. For instance, viceroy butterflies closely resemble (mimic) monarch butterflies. Birds that eat viceroys enjoy a good meal, but those that eat monarchs retch right away. What type of mimicry does this describe?




43. Probably the worlds most pressing ecological problem is




44. Predators are beneficial to communities because




45. Gymnosperms are NOT




46. Viruses are




47. An invertebrate is found in a freshwater setting and studies show it to have three developmental body layers and a cuticle covering its outer body. It belongs in the same phylum as the




48. Bile




49. Which of the following enzymes acts on protein?




50. Digestion in protozoans is