Food chain.

Meaning: This means that living organisms are connected in a series where one organism eats another to obtain energy. It's like saying, One animal eats another to survive.

Choice of Words: Food means any nutritious substance that people or animals eat or drink or that plants absorb in order to maintain life and growth. Chain means a series of connected things or events.

Alternative Expressions

Food web.

Meaning: It is like a giant spider web where each strand represents a food chain. For example, grass grows, grasshoppers eat the grass, birds eat the grasshoppers, and hawks eat the birds.

Choice of Words: The word "web" refers to a network of connected things. So, a "food web" is a complex network of interconnected food chains.

Food pyramid.

Meaning: It is like a triangle where the bottom layer is the widest and represents the foods that should be eaten the most, and the top layer is the narrowest and represents the foods that should be eaten the least.

Choice of Words: The word "pyramid" refers to a shape with a wide base and a narrow top. So, a "food pyramid" is a graphical representation of the relative amounts of different types of food that should be eaten.

Related Expressions