Ecology

What are the branching and interrelationships BETWEEN food chains in a biotic community an example of?

• A food web

• A population

• An ecosystem

• A biome

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How large is the average Canadian's ecological footprint?

• 1 football field

• 17 football fields

• 10 football fields

• 107 football fields

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To maintain BIODIVERSITY we need to use ecosystems in a sustainable way. What does a sustainable way mean?

• using all of the resources in the ecosystem to help energy flow

• not overusing the resources in the ecosystem, so future land development can still occur in those areas

• using all of the resources in the ecosystem to help the natural cycles

• not overusing the resources in the ecosystem, so future generations can also meet their needs

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The carrying capacity of a population is

• the limit of the number of people in a city

• the maximum number of individuals an ecosystem can support

• how many birds a cow can carry on its back

• the amount of pollution humans can put into the environment

What is one abiotic thing that could

limit the population size of the primary consumer?

• trees

• predator numbers

• prey available

• water access

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What is one biotic thing that could

limit the population size of the primary consumer?

• water access

• Habitat destruction

• environmental disaster

• pollution

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The word formula for Photosynthesis is:

• carbon dioxide + water ----> oxygen + glucose + water

• oxygen + water ----> carbon dioxide + glucose

• carbon dioxide + water ---> energy

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What is the word equation for Cellular Respiration?

• carbon dioxide + energy ---> water + energy + glucose

• oxygen + glucose + water ---> carbon dioxide + energy

• oxygen + glucose ----> water + carbon dioxide + energy

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A relationship between a mosquito and a human is called __________ and it means that_______:

• parasitism- one gains and one is harmed

• predation- one gets eaten and one benefits

• competition - one species gains over another

• mutualism- both gain

• commensalism- one gains, one is not affected

In the energy pyramid here, which organisms have the most energy available?

• Producers
• Carnivores
• Herbivores
• Top Predator

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