1. Graphic representation of the structure of a
food chain, depicted as a pyramid having a
broad base formed by producers and
tapering to a point formed by end
consumers. Between successive levels,
total biomass decreases as energy is lost
from the system

3. Benefits:
1- to know the types of food groups
2- to be healthy and to have a nice body
3- to help the sick people to arrange their food and
quantity of each groups
Deterring:
1- Obesity
2- Disease like high prusure if you eat more salty food