Ecology Ch. 13

A group of organisms of the same species that live in the same area is called a(n)

• community
• population
• biome
• ecosystem

Herbivores are which of the following?

• producers
• primary comsumers
• secondary consumers
• Tertiary consumers

Which phrase best describes biodiversity?

• the number of individuals in an ecosystem
• the amount of biomass in an ecosystem
• the amount of available energy in an ecosystem
• the number of species in an ecosystem

What do all the biotic and abiotic factors in a given area make up?

• a habitat
• a community
• an ecosystem
• a population

Which process is part of the hydrologic cycle?

• nitrification
• evaporation
• decomposition
• ammonification

Which model shows the number of organisms at each trophic level in an ecosystem?

• Biomass pyramid
• food web
• pyramid of numbers
• food chain

Which of the following provide most of the energy in ecosystems?

• keystone species
• carnivores
• generalists
• producers

What is another name for a producer?

• Heterotroph
• Heterozygote
• Autozygote
• Autotroph

An organism that has an unusually large effect on an ecosystem is called a(n)

• Keystone species
• Omnivores
• biotic factors
• Heterotrouph

A group of gray wolves living in Minnesota is an example of

• a community
• a population
• a biome
• an ecosystem