What were the four olds and whose job was it to destroy them?

Which kind of organism is a heterotroph?

How does specialization enable countries to trade with one another? a country can make and sell goods affordably and buy goods that it is inefficient at making. a country can make what it chooses and sell its goods to other countries. a country can decide to buy everything it needs from other countries. a country can efficiently make goods that were once difficult to make.

4) what articles do you think a soldier would have in his “old kit bag”?