5th-6th Grade Science Chapter 8 Review- Changes In An Ecosystem- Part 2 Question Preview (ID: 46481)
Chapter 8 Review- Changes In An Ecosystem.
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Plant and animal species that originally live in an ecosystem are called ___.
a) endangered species
b) invasive species
c) native species
d) extinct species
Any physical hazard to life caused by having too much or too little of things need for life is called a ___.
a) stress
b) monsoon
c) cycle
d) disaster
True or False: All stressors on a ecosystem are caused by people.
a) True
b) False
c) Aladdin
d) Jasmine
Which of the following is NOT a relationship with the ecosystem that Christians should have?
a) Manage and take care of the ecosystem.
b) Protect living things in an ecosystem.
c) Make efforts to replenish or regrow the resources we use.
d) Use every resource until it is gone, since God has given man dominion over the earth.
How is a drought different from other natural disasters?
a) It has a definite beginning and ending.
b) It does not have a definite beginning or ending.
c) It is God-pleasing, and other natural disasters are not.
d) It is not God-pleasing, and other natural disasters are.
Which of the following are NOT ways people can reduce the effects of stresses on an ecosystem?
a) replanting trees
b) setting aside wildlife refuges or national parks
c) eliminating limits on hunting and fishing
d) adding fish ladders to dams
After coming back from an overseas trip, a passenger bring a potted plant that an airline inspector will not let them keep. Why might this be the case?
a) Inspectors don't want people to have nice things.
b) The plant could use up all of the oxygen on the plane.
c) Someone on the plane might be allergic to the plant.
d) The plant may be an evasive species that could cause harm to ecosystem.
What of the following is NOT a problem that invasive species can bring to an ecosystem?
a) decreased competition for water
b) increased number of predators
c) diseases
d) increased competition for food
People and animals breathe in oxygen and breathe out carbon dioxide during ____.
a) the carbon cycle
b) respiration
c) hurricanes
d) the nitrogen cycle
Bacteria that can change nitrogen into compounds can be found in ___ nodules on plants.
a) leaf
b) petal
c) root
d) stem
During respiration organisms use ___ molecules and oxygen to produce energy.
a) sugar
b) carbon dioxide
c) root
d) respiration
A regular pattern of change is called a ____.
a) monsoon
b) stressor
c) cycle
d) system
The water cycle includes precipitation, transpiration, ____, and condensation.
a) respiration
b) evaporation
c) transportation
d) elevation
The year is divided into ____, one of earth's cycles.
a) cycles
b) temperatures
c) precipitation
d) seasons
What is the role of decomposers in the carbon cycle?
a) Decomposers provides energy for the plants to make food.
b) Decomposers take in carbon dioxide and release oxygen.
c) Decomposers take in oxygen and releases carbon dioxide into the air and waste into the soil.
d) Decomposers break down wastes and the bodies of dead things, returning carbon dioxide into the environment.
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