List three sources that add carbon dioxide to the air, water, and/or soil.
True or false? Energy cycles through ecosystems without ever being lost.
Describe the transfer of energy from one living thing to the next in an ecosystem.
What is a food web?
Explain the process of photosynthesis.
Brainstorm a list of as many natural changes that can cause changes in ecosystems.
Define species and give an example.
Define population and give an example.
Define community and give an example.
Living things are often in competition with each other for things like food, water, and living space. Give one example of competition between living things in ecosystems.
How might weather affect the population of an ecosystem?
What is meant by the term “pioneer species”? What kinds of species are most often pioneer species in an ecosystem?
What is the difference between primary and secondary succession?
Give on example of a pioneer species, and one example of a species in a climax community.
What is a biome? Give one example of a biome, describe it briefly, and explain where in the world it might be found.
True or false? Ecosystems can be changed by biotic and abiotic factors.
List the three main reasons why human beings have a bigger impact on ecosystems than any other living thing.
Give an example of a human technology that affects ecosystems and describe what effect it has.
Describe how humans spraying pesticides can ultimately affect their health in a negative way (diagram on p. 74)
Identify one example of human impact on an ecosystem that you could help to lessen and describe how you would go about lessening this impact.
Define biodegradable and give an example of a material that is biodegradable.
Name four methods of disposing of wastes using human technologies.
Why is reducing or reusing waste better than recycling?
5 comments:
Miss Campbell i dont get the question "Give an example of a human technology that affects ecosystems and describe what effect it has."
Think of how technology has altered our ecosystems - for example, a chainsaw alters ecosystems by cutting down trees, and human-designed factories alter ecosystems by emitting smoke and carbon dioxide into the atmosphere.
Miss Campbell i dont understand a question in the unit review that asked the question "Look around your community.What evidence do you see of environmental problems caused by human activities?How could First Nations and Metis knowledge about Earth work to support living things and their living spaces?" The First Nations views makes no sense to me!!
Thanx miss campbell i get it now
Miss campbell i dont get the quiestion "Living things are often in competition with each other for things like food, water, and living space. Give one example of competition between living things in ecosystems."
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