Succession Review

What is primary succession?

• The process of community change in an area where no soil exists

• The recovery of an ecosystem after a disturbance that leaves the soil intact

• The increase in species diversity in an already established ecosystem

• The process by which a species becomes more numerous in an ecosystem

Which of the following is an example of a pioneer species in primary succession?

• Oak trees

• Lichens

• Deer

• Grasses

What is secondary succession?

• The process of community change in an area where no soil exists

• The recovery of an ecosystem after a disturbance that leaves the soil intact

• The increase in species diversity in an already established ecosystem

• The process by which a species becomes more numerous in an ecosystem

Tags

NGSS.MS-LS2-4

What does the term "carrying capacity" refer to in an ecosystem?

• The maximum population size of the species that the environment can sustain indefinitely

• The total number of species that can live in an ecosystem

• The rate at which species reproduce

• The amount of water available in an ecosystem

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following is a limiting factor in an ecosystem?

• Photosynthesis

• Water availability

• The number of predators

• Both B and C

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

How does biodiversity affect the stability of an ecosystem?

• It has no effect on ecosystem stability

• It decreases ecosystem stability

• It increases ecosystem stability

• It initially increases stability but then decreases it over time

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What role do pioneer species play in succession?

• They decrease the rate of succession

• They prepare the soil for secondary species

• They are the final species to appear in succession

• They consume the primary producers

Tags

NGSS.MS-LS2-4

In the context of populations, what is a "limiting factor"?

• A factor that has no effect on population size

• A factor that increases population size indefinitely

• A factor that prevents a population from increasing

• A factor that solely affects the birth rate

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following best describes the concept of carrying capacity?

• The ability of an ecosystem to support an unlimited number of individuals

• The maximum number of individuals of a particular species that an environment can support for an indefinite period

• The minimum number of individuals needed to maintain a species

• The number of individuals that can be supported in an environment temporarily

What is the main difference between primary and secondary succession?

• Primary succession occurs faster than secondary succession

• Secondary succession starts on bare rock, while primary succession starts in soil

• Primary succession starts on bare rock, while secondary succession starts in soil

• There is no significant difference; they are the same process