Because we learn over time how things work and how they don't work.
Explanation:
excretory system is present in human body which discharge out the waste material time to time. basically when a cell in a body breaks down they produce various waste material like carbohydrates eliminates carbon dioxide while digestive system eliminates through feces. any malfunctioning can cause serious problem like constipitation kidney failure and kidney stones
Here’s 5 individual food chains
1) Grass, Cow, Man, Maggot
2) Leaves, Ants, Anteaters
3) Nuts, Squirrels, Hawks
4) Rice, Rats, Owl
5) Sun, Grass, Ant, Echidna, Dingo
I hope it helps
