Succession Check

Which of the following is not a possible cause of ecological succession?

• A. fire

• B. flood

• C. earthquake

• D. change of season

. Which of the following is an example of primary succession?

• A.lichens growing on rocks following a volcanic eruption

• B.grasses growing after a forest fire

• C.oak trees replacing pine trees in a forest

• D. non-native species introduced into a climax community

Which of these organisms would you most expect to find on a small island that formed as a result of a volcanic two years prior?

• A.climbing vines

• B.hardwood tree

• C.monkey

• D.lichen

Which of the following describes how an abiotic factor can impact the population dynamics in an ecosystem?

• A. A parasite that invades a host can reproduce and cause a decline in the host species population.

• B. Organisms that compete for the same resources will keep each other from overpopulating.

• C. Predators will prevent herbivores from depleting the plants and other resources in an ecosystem.

• D. Seasonal variations in temperature can cause some of the individuals in a population to die.

How is primary succession different from secondary succession?

• Primary succession starts with soil.

• Secondary succession start with bare rock.

• Primary succession starts with bare rock, with lichens and moss.

• Fire is an example of primary succession.

Examples of Abiotic Factors include:

• Weather, birds, plants, and animals

• Rocks, reptiles, shrubs, trees, and grasses

• Weather, wind, rain, sunlight, and rocks

• Birds, plants, animals, reptiles, shrubs, trees, and grasses

How has the invasion of pythons effected the everglades ecosystem in terms of species numbers?

• The pythons could upset the territorial boundaries of native organisms.

• The pythons could adapt to overcome diseases common to native snakes.

• The pythons could prey on native organisms and cause native populations to decline.

• The pythons could begin to interbreed with native snakes and produce a more successful species.

Which is a natural cause of

ecosystem change?

• A. Farming

• B. Building fences

• C. Pollution

• D. Hurricane

Which of the following best

describes biodiversity

• A. a diverse Biology class

• B. variety of all life on earth

• C. a variety of plants

• D. a variety of animals

Abandoned railroad tracks are overgrown with weeds. Ten years later there are small aspen trees growing in the middle of the tracks. This change is an example of:

• Primary succession

• Biological evolution

• Secondary succession

• Heterotrophic nutrition