Organisms and Populations Competing for Abiotic/Biotic Resources in an Ecosystem

At what level of organization in an ecosystem is an individual plant or animal?

• Population
• Organism
• Community
• Ecosystem

Community is the level of organization which is best described as all -

• members of a certain species in a given area.
• members of a species regardless of where they live.
• living things, regardless of species, in an area.
• living and non-living components of an area.

Which of the following describes an interaction between a biotic factor and an abiotic factor?

• A pair of birds build a nest in a tree
• A black bear uses a cave for a winter home
• A squirrel gathers nuts to store for winter
• A vulture eats the remains of a wild pig

Tags

NGSS.MS-LS2-3

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?

• Population
• Class
• Species
• Society

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

Tags

NGSS.MS-LS2-3

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 

Temperature, light, air, water, and soil are all  _____  parts of the environment

• alive
• biotic 
• abiotic
• living

Tags

NGSS.MS-LS2-3

What is an ecosystem?

• a population of different species.

• a community of living and non living organisms.

• a population of the same species.

• The community of Westview Middle School.