APES Project 3 Quiz Review

The ultimate source of energy for terrestrial ecosystems is?

the sun

In the transition from each trophic level to the next, the upper level receives what percentage of the energy available from the lower level?

10%

What represents the biotic potential fo the species without limiting factors?

A. "exponential"

What represents the maximum number of individuals that can be supported by a particular ecosystem on a long-term basis?

E. carrying capacity

What scenario is possible?

decreasing the deer population will result in collapse of the wolf population

The consumption of mosquitoes by bats and the control of flooding provided by tropical forests in mountainous areas of Central America are examples of?

ecosystem services

What best describes energy transfer in a food web?

energy from the sun is stored in green plants and transferred to consumers through herbivory

What factor can be used to assess the biological diversity of an area?

genetic variation within each species and number of species present

Which characteristics tend to increase the risk of an endangered species?

having a very limited distribution and being a specialist at the end of a long food chain

What is not an advantage to protecting biodiversity?

it helps to reduce our dependence on the environment

What is true about succession?

it is the change in an ecosystem structure that occurs naturally over time

Road construction, logging, and mining are banned in what federal lands?

national wilderness preservation areas

In ecosystems, organisms at the highest trophic levels usually contain less collective biomass than the organisms at lower trophic levels because?

organisms are inefficient at converting the energy they consume into biomass

In general, what long-term method is best for preventing extinctions?

protecting the habitats of endangered species

What combination of processes can change global species diversity?

speciation and extinction

Why do introduced species often become pests?

they displace native species

The Isle Royale food chain is controlled by wolf predation. This is an example of?

top down population dynamic

What biome has the highest net primary productivity?

tropical rain forest

A type 3 survivorship curve, which decreases at first and shows a leveling off in older specimans is?

typical of amphibians and most fish

What represents the growth of a population predicted by the logistic model?

C. "slope"