Keys Section 1.

Unit 1. Human body

Exercise 3.

1. false 2. false 3. true 4. false 5. true 6. true 7. true 8. false

Exercise 6.

1. C 2. E 3. A 4. D 5. B

Unit 2. Water

Exercise 2.

1. B 2. A 3. D 4. C

Unit 3. Fungi

Exercise 3.

1. suggests 2. discovery 3. infected 4. activating 5. infection 6. eliminated 7. researchers 8. conducted 9. providing 10. connecting 11. speculated 12. signaling 13 fungal 14. are attacked 15. respond 16. spread 17. set out 18. fungi

Exercise 4.

1. d 2. e 3. j 4. f 5. g 6. a 7. h 8. b 9. i 10. c

Exercise 9.

1. false 2. not given 3. false 4. false 5. true 6. true 7. not given 8. false 9. false 10. true

Unit 4. Bacteria

Exercise 4.

1. B 2. D 3. C 4. A

Exercise 8.

1. B 2. D 3. A 4. A 5. C 6. C 7. C 8. D

Unit 5. Domesticated animals

Exercise 6.

1. false 2. false 3. true 4. not given 5. true 6. true 7. true 8. true

Section 2.

Unit 6. Brain

Exercise 8.

1. B 2. С 3. A 4. G 5. F 6. E 7. D

Exercise 15.

1. true 2. true 3. false 4. false 5. false 6. false 7. true 8. false 9. false

Unit 7. Sleep

Exercise 3.

1. false 2. false 3. false 4. true 5. true 6. false 7. true

Unit 8. Coffee

Exercise 1.

1. a 2. n 3. g 4. d 5. l 6. e 7. b 8. i 9. o 10. j 11. с 12. k 13. m 14. h 15. f 16. p

Exercise 8.

1. false 2. true 3. false 4. false 5. false 6. true 7. false 8. false 9. false

Unit 9. Human genetics and diversity

Exercise 1.

1. i 2. l 3. c 4. j 5. f 6. m 7. d 8. h 9. a 10. k 11. g 12. b 13. e

Exercise 14.

1. c 2. e 3. d 4. b 5. a

Unit 10. Animal adaptations

Exercise 10.

1. false 2. false 3. true 4. true 5. true 6. false 7. false 8. true 9. true 10. false

Exercise 13.

1. known 2. known 3. threatening 4. argued 5. extinction 6. reintroduced 7. arguments 8. manageable 9. keeping

Exercise 14.

the Scott Reefs – 1, 2, 4, 6, 9

the Rowley Shoals - 1, 2, 3, 5, 7, 8

Section 3.

Unit 11. Human evolution

Exercise 3.

1) 3-1 mln years ago	Australopithecus
2) 2,4-1,9 mln years ago	Homo rudolfensis
3) 2-1.6 mln years ago	Homo habilis
4) 1,8-1,3 mln years ago	Homo ergaster
5) 1,5-0,4 mln years ago	Homo erectus
6) 0,4 - 0,3 mln years ago	Neanderthals
7) 0,2-0,1 mln years ago	Homo sapiens

Exercise 13.

1. true 2. true 3. false 4. false 5. true 6. false 7. true 8. true 9. true 10. true

Unit 12. Alcohol

Exercise 5.

1. not given 2. true 3. true 4. false 5. false 6. not given 7. false 8. true 9. not given 10. true 11. true

Exercise 10.

1. f 2. b 3. d 4. a 5. c 6. e

Unit 13. Sex and gender

Exercise 3.

1. true 2. false 3. false 4. true 5. false 6. false 7. false 8. false 9. true 10. false 11. false

Unit 14. Aging

Exercise 5.

1. false 2. false 3. true 4. false 5. false 6. true 7. false 8. true 9. true 10. true

Exercise 8.

1. d 2. c 3. a 4. b

Exercise 11.

1. true 2. false 3. true 4. true 5. true 6. false 7. false 8. false 9. false 10. false 11. false 12. true 13. false 14. true

Unit 10. Food

Exercise 7.

1. false 2. true 3. false 4. false 5. true 6. false 7. true 8. false 9. false

1 Хрисанова Е.Н., Перевозчиков И.В. Антропология. – М.: Наука, 2005

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