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An ______ includes all living and nonliving things together in an area.
producers
consumers
ecosystem
population
When a population thrives, it means that
the number of organisms stays the same.
the number of organisms is increasing.
the number of organisms is decreasing.
it is growing strong and reproducing.
Which of the following gives an example of how birds modify their environment to meet their needs?
Birds use twigs to build a nest.
Birds breathe air and drink water.
Birds find food.
Birds hatch eggs and feed their young.
Changes to an environment may make it more difficult for an organism to find
food
All of the above
water
shelter
When an environment changes and organisms can no longer meet their basic needs they will most likely −
not be affected
perish
none of the above
thrive
A healthy environment, with no sudden changes will help organisms to
thrive
perish
die out
move to other places
Very little rainfall, hot weather, and cracked ground describe which change to an environment?
flood
landslide
volcanic eruption
drought
How might cutting down the trees in a rainforest environment affect the animals that live there?
Animals will move to new areas to meet their needs.
The animals will make their homes under ground.
All of the animals that live there will perish rapidly.
Animals that eat tree leaves will become carnivores.
When changes to an environment happen, animals
perish
All of the above
adapt
move
changes in the environment affect the ___________ of living things
sulfuric acid
lichen
acid rain
distribution
Which of the following change could not affect the distribution of animals and plants
change in average temperature
change in average rainfall
change in the level of oxygen
change in a competitor
