1
Decaying organisms put _________ back into the soil.
minerals
If the amount of food decreases, a population may also ________
decrease
A freshwater snail is a swamp food chain eats ______ and is eaten by blue _______
Algae herons
In a food web, zooplankton would be considered a ____________
consumer
If most of a population of animals die. the food _____ will change.
Web
An ________ eats both plants and animals
Omnivore
__________ is the main energy source on earth.
Sunlight
An organism, like an insect, that eats the remains of an animal is called a _______
decomposer
The ______ is where an animal lives
Habitat
An __________ is a system of living and nonliving things interact.
ecosystem
________ and ________ are things that animals need travel through a food chain
Nutrients minerals
An animal's job or role is an ecosystem is called its _____
niche
Explain how a food chain is different than a food web.
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