Levels of Organization (RETEACH)

The table lists levels of organization in an ecosystem from least complex to most complex. Which of the following belongs in the table where the question mark is?

• Species

• Population

• Class

• Society

Meat-eating desert reptiles depend on which of the following biotic factors to supply their needs?

• Daytime temperature ranges above 30 degrees Celsius

• Condensation of moisture on plants for drinking water

• Small animals in their habitat on which they feed

• Plants that bear fruits during the summer months

Tags

NGSS.MS-LS2-1

Which of the following best describes a population?

• All the organisms of a certain species in a given area

• All the organisms in a habitat that compete for resources

• One individual and all the organisms on which it depends

• All of the living organisms which can be found in an area

Which of the following lists includes only abiotic factors?

• Plants, animals, average daily temperature

• Rainfall amounts, average daily temperature, minerals in soil

• Minerals in soil, plants, rainfall amounts

• Animals, rainfall amounts, soil composition

Which of the following statements describes a community?

• One member of a species in a given area

• All of the members of a species in a given area

• All of the members of a species that live anywhere

• All of the different species of living things in an area

Which of the following describes a change to an abiotic factor of a squirrel's habitat that could be harmful to it?

• Increase in the population of food plants

• Drought that depletes available water

• Deforestation leading to reduced nesting sites

• Increase in the population of local predators

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is the lowest level of organization of the biosphere, or the one that has the fewest members?

• Ecosystem

• Population

• Community

• Organism

Which of the following correctly lists the levels of organization from least complex to most complex?

• Community, Organism, Population, Ecosystem

• Population, Community, Ecosystem, Organism

• Organism, Population, Community, Ecosystem

• Ecosystem, Population, Organism, Community

Which of the following is a description of an abiotic factor that makes up part of a desert habitat?

• Sparse growth of cottonwood trees

• Extremes of day and night temperatures

• Few large predators, such as coyotes

• Leafless, waxy-coated plant with sharp spines

Which organizational level of the ecosystem does a pack of wolves represent?

• Ecosystem

• Organism

• Population

• Community

Tags

NGSS.MS-LS2-1