Answer:
Many cells are specialised. They have structures that are adapted for their function. For example, muscle cells bring parts of the body closer together. They contain protein fibres that can contract when energy is available, making the cells shorter.
Hello this means poopypants
Waste products of plants are Carbon Dioxide & Water. But if it's a waste product of photosynthesis it's Oxygen.
So in all honesty it could be all of the above but if it's a single choice I'd go for B. Carbon Dioxide.
It is predation. How?
What do you think will happen if the fox catches the rabbit.
The fox will eat it.
Thus, predator-prey relationship; the fox gets full, and the bunny, well, it's not so good.