Unit 5 Vocabulary: Part B

What is carrying capacity in an ecosystem?

• The maximum population size an environment can sustain indefinitely

• The minimum number of organisms needed for survival

• The rate at which a population grows

• The death rate of a population

Which of the following is an example of a biotic limiting factor?

• Temperature changes

• Competition for food

• Soil pH

• Available sunlight

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

In a population pyramid, what does a wide base indicate?

• Aging population

• Declining birth rates

• High proportion of young individuals

• Equal distribution of ages

Primary succession begins with:

• Soil development

• Plant growth

• Bare rock

• Dead organisms

What type of distribution pattern shows organisms spread evenly throughout an area?

• Random distribution

• Clumped distribution

• Linear distribution

• Uniform distribution

Which abiotic factor does NOT affect population growth?

• Rainfall

• Predation

• Temperature

• Wind

Tags

NGSS.MS-LS1-5

Population density refers to:

• The total number of deaths in a population

• The number of organisms per unit area

• The birth rate of a species

• The migration patterns of organisms

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NGSS.MS-LS2-4

Secondary succession occurs when:

• Volcanic activity creates new land

• Soil is already present

What describes the movement of organisms into a population?

• a. Succession

• b. Dispersion

• c. Emigration

• d. Immigration

The range of tolerance for a population represents:

• a. The maximum number of offspring possible

• b. The geographic boundaries of the species

• c. The limits within which organisms can survive

• d. The social structure of the group

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4