3 Fill in the appropriate word(s) from the list
below. Use the word(s) only once.
food, to pass , a means, to have, round, survival,
to give, nervous, to spread, members, to cause.
explosion

1........... techniques
2............. damage
3 ..... a resistance to sth
4.......... knowledge down
5.............. of defence
6 all year .......
7 population....... 8.........system 9........the message 10...........supply 11 ......birth to 12.......of the colony​