Solve the following crossword puzzle:

Across:

1. Animals that eat both plants and flesh of other animals.
2. Animals that live on or inside the body of other animals.
3. A series of organisms linked together by the process of eating and being eaten for food.
4.  A tasty and nutritious food item obtained from beehives.

Down:

5. The materials needed to prepare food items.
6. Rearing of honeybees on a large scale is called
7. The parts of a plant which can be eaten are called _____ parts.