You
are
going
to do
GREAT!
300
An ecological footprint is the: A. mark a person's shoe makes on the soft earth B. amount of resources needed to support one person C. number of animals a person has killed D. number of trees people cut down
What is B. amount of resources needed to support one person
300
What kind of organism obtains energy only from producers? A. herbivores B. decomposers C. omnivores D. all of the above
What is A. herbivores
300
Which of the following is NOT a biotic factor in an ecosystem? A. insects B. bacteria C. rain D. leaves
What is C. rain
300
Which ecosystem has the LOWEST level of salinity? A. salt marsh B. mangrove swamp C. brackish marsh D. river
What is D. river
300
Which country is MOST likely to have either a stabilized or a slowly growing population? A. Mexico B. Australia C. India D. Pakistan
What is B. Australia
400
Which organism is likely to be in the bottom trophic level of a food chain? A. krill B. leopard seal C. algae D. killer whale
What is C. algae
400
The term biodiversity refers to: A. The number of species living on Earth. B. The number and variety of species living on Earth. C. The number and variety of species that live in an area. D. The number and variety of species that are considered renewable.
What is C. The number and variety of species that live in an area.
400
The community of a lake is made up of all the A. populations of fish, insects, and other living organisms B. abiotic factors in the water C. resources organisms need D. habitats in and around the water
What is A. populations of fish, insects, and other living organisms
400
Which term is used to refer to the many feeding relationships that are possible in an ecosystem? A. all of these B. food pyramid C. food chain D. food web
What is D. food web
400
Consider the food chain algae---> zooplankton ---> small fish ---> squid ---> shark What would happen to the organisms in this food chain if the population of small fish was decreased due to harvesting by humans for pet food?
What is The number of squid and sharks would both decrease because they cannot get enough food. The number of zooplankton would increase due to the predator being gone. The number of algae would decrease, due to the number of zooplankton increasing.
500
Tropical rainforests are threatened by: A. a decrease in rainfall at the equator B. deforestation and the trade of rain forest plants and animals C. a decrease in the average temperature at the equator D. a thinning of the soil
What is B. deforestation and the trade of rain forest plants and animals
500
The "Tragedy of the Commons" describes the conflict between A. sheep herders and cattle men B. Canada and Mexico C. farmers and industrialized society D. individuals and society
What is D. individuals and society
500
In which country is the population likely to be INCREASING most rapidly? A. Norway B. Kenya C. Germany D. Australia
What is B. Kenya
500
__________ = positive effect - - - - - - - - = negative effect ................ = no effect What relationship is this: Organism A ___________> on B Organism B ___________> on A A. Mutualism B. Commensalism C. Parasitism D. Predation
What is A. Mutualism
500
__________ = positive effect - - - - - - - - = negative effect ................ = no effect What relationship is this: Organism A ----------------> on B Organism B ...................> on A A. Mutualism B. Commensalism C. Parasitism D. Predation
What is B. Commensalism
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