2 ** Find the words in the text and match them with the definitions. 1 recognise (v) a dangerously 2 migration (n) b by a very large amount 3 critically (adv) c a group of animals that 4 species (n) are all similar 5 dramatically d the plants grown by (adv) farmers 6 crops (n) e know when you see 7 medicine (n) again f the movement of animals from one place to another g something that can stop an illness
1. E
2. F
3. A
4. C
5. B
6. D
7. G