IB SL ESS 2.1 Quiz

What is the correct order of levels of organization in ecology?

• Population, Individual, Ecosystem, Community

• Individual, Population, Community, Ecosystem

• Ecosystem, Community, Population, Individual

• Community, Population, Individual, Ecosystem

What is a population?

• A group of organisms of different species living in the same area

• A group of organisms of the same species living in the same area

• A collection of ecosystems

• A group of species interacting with abiotic factors

Which of the following is an abiotic factor?

• Predation

• Competition

• Temperature

• Parasitism

What is a niche?

• The role an organism plays in its ecosystem

• The physical location where an organism lives

• The total number of organisms in an ecosystem

• The amount of energy an organism consumes

Which of the following is an example of a biotic factor?

• Soil texture

• Sunlight

• pH

• Predation

What is carrying capacity?

• The maximum population size an environment can support

• The minimum population size an environment can support

• The total number of species in an ecosystem

• The amount of energy available in an ecosystem

Which method is best for estimating the population size of non-mobile organisms?

• Capture-mark-release-recapture

• Random quadrat sampling

• Transect sampling

• Systematic sampling

Which of the following is an example of mutualism?

• A lion hunting a zebra

• A tick feeding on a dog

• A bee pollinating a flower

• A fungus decomposing dead leaves

What is the primary source of energy for most ecosystems?

• Water

• Sunlight

• Soil nutrients

• Oxygen

Which of the following is an example of a density-dependent factor?

• Earthquake

• Flood

• Disease

• Temperature