LIVING THINGS IN THE ENVIRONMENT

Which of the following is the smallest level of organization in an ecosystem?

• Community

• Organism

• Population

• Ecosystem

What term describes all the living things in an environment?

• Abiotic factor

• Biotic factor

• Limiting factor

• Habitat

Which of the following is an example of an abiotic factor?

• Grass

• Mouse

• Temperature

• Insect

Tags

NGSS.MS-LS2-3

What is a population?

• All the different species in an area

• All the organisms of one species in an area

• The nonliving parts of an environment

• The place where an organism lives

Arrange the following levels of organization in an ecosystem from smallest to largest: population, organism, ecosystem, community.

• Organism, population, community, ecosystem

• Population, organism, community, ecosystem

• Organism, community, population, ecosystem

• Ecosystem, community, population, organism

Which of the following best describes a habitat?

• The number of organisms in a population

• The place where an organism lives

• The nonliving parts of an ecosystem

• The interactions between species

What is a limiting factor in an ecosystem?

• A factor that increases population size

• A factor that restricts the growth of a population

• A factor that only affects abiotic components

• A factor that only affects biotic components

Tags

NGSS.MS-LS2-4

Which of the following is an example of a community?

• All the fish in a pond

• All the rocks in a river

• All the plants, animals, and bacteria in a forest

• The temperature of a lake

Based on the mouse population data, in which year did the mouse population experience the highest number of deaths?

• Year 1

• Year 2

• Year 3

• Year 4

Using the data provided, in which year did the mouse population have the greatest net increase (births minus deaths)?

• Year 1

• Year 2

• Year 3

• Year 4