Answer:
1) Predator-prey: an animal that kills and eats other animals.
2) How are they adapted: Many prey animals have developed different adaptations to protect themselves from becoming another animal's dinner. Camouflage, highly developed senses, warning signals, and different defensive weapons and behaviours are all used by prey animals for survival.
3) What is a food web and how does it work: A food web is a system of interlocking and interdependent food chains.
Food Webs - The decomposers, however, break down the nutrients in decayed organic matter to a far greater extent than do detritivores.