10BD 4-3: Ecological Succession

What is the first stage of primary succession?

• Climax community

• Pioneer species colonization

• Secondary succession

• Intermediate species

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DOK Level 1: Recall

Which of the following is an example of a pioneer species?

• Oak tree

• Lichen

• Pine tree

• Maple tree

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DOK Level 1: Recall

What distinguishes primary succession from secondary succession?

• Primary succession occurs on existing soil, while secondary succession starts on bare rock.

• Primary succession starts on bare rock, while secondary succession occurs on existing soil.

• Both occur on existing soil.

• Both start on bare rock.

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DOK Level 2: Skill/Concept

Which factor is most likely to affect the rate of ecological succession?

• The color of the soil

• The availability of sunlight

• The shape of the leaves

• The height of the trees

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DOK Level 2: Skill/Concept

Explain why pioneer species are crucial in the process of primary succession.

• They provide shade for other plants.

• They break down rock to form soil.

• They consume other plants.

• They prevent erosion.

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DOK Level 3: Strategic Thinking

Sequence the steps for primary succession in a terrestrial environment.

• mosses

• grasses

• rock

• lichen

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NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following best describes a climax community?

• A community that is constantly changing

• A stable and mature community

• A community dominated by pioneer species

• A community in the early stages of succession

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DOK Level 1: Recall

During secondary succession, which of the following events is most likely to occur first?

• Growth of large trees

• Colonization by grasses and weeds

• Formation of bare rock

• Establishment of a climax community

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DOK Level 2: Skill/Concept

How does the presence of a climax community affect biodiversity?

• It decreases biodiversity.

• It increases biodiversity.

• It has no effect on biodiversity.

• It eliminates all species except one.

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DOK Level 2: Skill/Concept

Sequence the steps for secondary succession in a terrestrial environment.

• oak trees

• herbs

• shrubs

• pine trees

• grasses