✔ 最佳答案
Food web describe the feeding relationships between species to another within an ecosystem and shows how plants and animals are connected in many ways to help them all survive. FOOD CHAINS follow just one path as animals find food.
EXAMPLE:
GRASS (is eaten by a) GRASSHOPPER (which is eaten by) a FROG (which is eaten by a) SNAKE (which is eaten by a) HAWK
It is usually a graph where only connections are recorded, and a food network or ecosystem network refers to a network where the connections are given weights representing the quantity of nutrients or energy being transferred.