Which of the following situations accurately describes a difference between a food chain and a food web?

A .A carnivore receives 10 percent of the energy from its prey in a food web.
B. A carnivore eats both a rabbit and a mouse in a food web.
C. A rabbit eats grass in a food chain.
D. A rabbit receives 90 percent of the energy from the grass it eats in a food chain.


The Pangaea theory supports the theory of plate tectonics because _____.

it is based on the idea that there were several land masses when Earth was first created.

it is based on the idea that all the present continents were one supercontinent.

it does not require scientists to support the notion that Earth’s plates can move.

one day, Earth will have one large land mass again.