Topic 2: Ecology (part 1)
15 review questions with answers for Topic 2: Ecology (part 1), marked SL. Read them here, or play the set as a class game on the projector. Free to host, and students join with a code.
The parts of Earth where life exists, composed of individuals, populations, communities and ecosystems?
- Population
- Community
- Ecosystem
- BiosphereRight answer
All 15 questions and answers
The parts of Earth where life exists, composed of individuals, populations, communities and ecosystems?
Answer: Biosphere
A group of organisms that can interbreed and produce fertile offspring?
Answer: Species
A group of organisms of the same species living in the same area and capable of interbreeding?
Answer: Population
The particular set of abiotic and biotic conditions and resources upon which an organism or population depends?
Answer: Ecological niche
Non-living physical factors such as temperature, pH and salinity that influence organisms?
Answer: Abiotic factors
Living components of an ecosystem, including competition, predation and mutualism?
Answer: Biotic factors
The maximum population size a habitat can support given its limited resources?
Answer: Carrying capacity
Limiting factors whose effect intensifies as a population becomes more crowded (e.g. competition, disease)?
Answer: Density-dependent factors
Population growth that accelerates without limit because resources are not limiting?
Answer: Exponential (J-curve) growth
Population growth that slows and then levels off at carrying capacity as limiting factors take effect?
Answer: Logistic (S-curve) growth
A collection of interacting populations within an ecosystem?
Answer: Community
The location in which a community, species or organism lives?
Answer: Habitat
A community and the physical environment with which it interacts; an open system of energy and matter exchange?
Answer: Ecosystem
A species that has a disproportionately large effect on community structure relative to its abundance?
Answer: Keystone species
Formula M × N ÷ R used with capture–mark–release–recapture data to estimate the size of a motile population?
Answer: Lincoln index
Play it as a class game
Play this set opens it in splycr, where you can host it for your class straight away. Hosting needs no account: put the room code on the projector, and students join from a phone with the code and their first name. Each question plays as multiple choice, and the three wrong options are other answers from the same set.