I
I
4. What happens to plants and animals when water temperatures are very
low?

In each transformation of energy , some energy what?

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems

If there is another new infectious disease somewhere in the world, what do you think canadian officials should do