Chapter 4 Test Part 2 Of 2 Question Preview (ID: 43266)
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Nonnative animal populations can grow rapidly in a new ecosystem because
a) predators in the ecosystem are not used to hunting them.
b) nonnative speicies are always at the top of the food chain.
c) they are producers.
d) they have no competition for resources in the ecosystem.
The relationship between an owl and a mouse is an example of
a) symbiosis
b) predator and prey
c) producer and consumer
d) competition
The shortest food chains consist of
a) a producer and a decomposer
b) two consumers
c) two producers
d) a consumer and a decomposer
Which of the following are some benefits of a natural forest fire in an environment?
a) It clears land for people to build housing additions.
b) The forest fire makes room for new habitats. Also, it returns nutrients to the soil.
c) The forest fire will purify the air.
d) The forest fire allows nonnative species to take over.
Which of the following is an environmental change caused by humans?
a) farm
b) heavy rain
c) lichen on a rock
d) beaver dam
Which can be described as the reverse of photosynthesis?
a) metamorphosis
b) cellular respiration
c) mitochondria
d) chlorophyll
Which of the following BEST supports the conclusion that the sun is Earth’s primary energy source?
a) Plants don’t use the sun for energy.
b) Plants get energy from the sun. Animals eat plants for energy.
c) Animals get energy from the sun. Plants get their energy from animals.
d) Plants are not a necessary part of the food chain.
What is the source of energy for most plants?
a) water
b) animals
c) clouds
d) sunlight
A nonnative plant in an ecosystem spreads quickly. This will most directly affect the native plants by
a) giving them more food.
b) helping them grow.
c) leaving them less space.
d) leaving them more sun.
What do plants require to go through photosynthesis?
a) Soil, air, water, and sunlight
b) Air and water
c) Air, water, and sunlight
d) Soil and water
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