Every organism needs to obtain energy in order to live. Plants get their energy from the ____ and make their own food.
A food chain starts with the primary _______ source, usually the sun or deep ______ vents.
The next link in the chain is an organism that makes its own food from the privary energy source--an example is plants that make their own food from sunlight ________
Next come organisms that eat autotrophs; these organisms are called herbivores or primary ______-an example is a rabbit that eats _________
the next link in the chain is animals that eat herbivores; these are called secondary consumers--an example is a snake that eats rabbits
Each food chain ends with a ____predator, an animal with no natural enemies (alligators, hawks, polar ____)
When any organism dies, it is eventually eaten by ______ (vultures, worms and crabs) and broken down by decomposers (bacteria and fungi), and the exchange of energy continues.