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Living things grow, develop, interact, and _______ with things around them.
a. chain
b. ecosystem
c. reproduce
C. Reproduce
All the living and nonliving things and the environment in which they interact is an ________.
a. ecosystem
b. food
c. predators
Fish and berries are resources that meet a bear’s need for ______.
a. resource
b. food
c. web
b. food
There is competition between animals when they share the same limited ______.
a. reproduce
b. resource
c. web
b. resource
Several food chains linked together is a food _____.
a. ecosystem
b.resource
c. chain
c. chain
An ecosystem stays balanced when _____ control population sizes.
a. predators
b. food
c. web
a. predators
All the populations, communities, and habitats make up an ecosystem.
true/false
true
A living thing that makes its own food and gets its energy directly from the sun is a consumer.
true/false
false
An animal that eats both plants and animals is called an omnivore.
true/false
true
An animal that eats only plants is called a carnivore.
true/false
false
A pineapple plant is a _______.
a. consumer
b. decomposer
c. producer
c. reproducer
A food chain is the movement of _____ from one living thing to another living thing.
a. energy
b. force
c. magnetism
a. energy
When one part of the food web changes, it affects _____ the web.
a. none of
b. some of
c. all of
c. all of
A cause of change in an ecosystem could be _____.
a. a cloudy day
b. light wind
c. not enough rain
c. not enough wind
A characteristic that helps an organism survive in a changed ecosystem is _______.
a. a camel storing fat in a drought
b. a squirrel making a nest in a tree
c. a fish breathing in water
a. a camel storing fat in a drought
The frog’s food chain in this food web includes the sun, the plants, and the _____.
a. fox
b. garter snake
c. grasshopper
A producer in this food web is a ____.
a. fox
b. grasshopper
c. plant
c. plant
The herbivore in this food web is the _____.
a. fox
b. grasshopper
c. snake
b. grasshopper
The omnivore in this food web is the _____.
a. fox
b. grasshopper
c. plant
a. fox
The carnivore in this food web is the ____.
a. fox
b. grasshopper
c. snake
c. snake