Because animals are not able to photosynthesize energy from the sun for their own needs.
Animals must digest food to receive the essential nutrients that the particular organism needs to survive.
Animals must digest food to receive the essential nutrients that the particular organism needs to survive.
Humans, like all animals, are heterotrophic. They can't synthesize their own food and have to eat other organisms to survive.
To survive, they must.
a spoon
to survive
A heterotroph is an organism or cell that cannot make its own food. In a word, it is not self-sufficient. The common heterotroph that everybody sees are animals. Animals must eat other organisms to survive. Unlike plants, which are autotrophs, the opposite of heterotrophs, they have no method to produce its own nutrients.
to survive
hetetrophic nutrition
All animals are consumers as they do not produce there own food like plants. They must feed of other plants and animals to survive.
An organism must obtain nutrients, grow and develop, reproduce, respond to stimuli, and maintain homeostasis to survive and thrive in its environment.
All animals must eat in order to survive