Ecosystem- 6th grade

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-LS2-4

A macaw is a type of parrot with colorful feathers that flies about in the upper canopy of trees in tropical rainforests. Macaws have a diet which includes fruits, leaves, nuts, and seeds of plants. Which of the following describes a biotic factor of the macaw’s habitat that provides a survival advantage for these birds?

• The colorful feathers are lost and regrow each year

• During some periods, rain falls nearly every day

• Some rainforest predators are able to climb trees

• Trees provide shelter and abundant food supplies

Tags

NGSS.MS-LS2-1

Which of the following describes a biotic factor that would be an advantage to a certain species of freshwater plants in a pond ecosystem?

• Increased rainfall that leads to the habitat of the plants covering more area

• Toxic waste and trash being dumped into the pond where the plants live

• Reduction in the population of fish in the pond that eat plants

• Introduction to the pond of another species of plants that compete for resources

Tags

NGSS.MS-LS2-4

Which of the following descriptions represents the community level of organization?

• A single individual rabbit, of a certain species, living in a forest

• A group of rabbits, all of the same species, living in a forest

• All of the animals, plants, and non-living elements in a forest

• All of the rabbits in a forest, as well as their predators and food plants

Tags

NGSS.MS-LS2-5

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

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

Define: Abiotic

• Living things in an ecosystem

• An organism that gets its food from other organisms

• Non Living things in an ecosystem

• An organism that get its nutrients from the sun