Because the sun is really hot and we'd die if they weren't there
Organisms will adapt to their environment in order to survive. They will do whatever it takes to survive.
Answer:
spindle fibres
Explanation:
during mitosis/meiosis spindle fibres form and pull the chromosomes to each end
The saliva has enzymes that start to break down food using the lock and key system.The teeth chews the food and begins mechanical break down of food
