TESTS

Do all the people in the world eat the same foods?

NO - The types of food depend on religious, economic and climatic factors.

YES - They do.

NO - People eat the kinds of food they like. 

Which one of the following animals can be found at the upper trophic level?

Hen 

Wolf

Rabbit

Would  life on Earth be possible, if plants did not exist?

NO

YES , but only during spring and summertime.

YES

A food chain is:

A large number of shops where they sell food.

A transgenic food.

A community of organisms.