The Hierarchical Organization of Organisms, Populations, and Communities within an Ecosystem

Which of the following is an organism?

• a herd of sheep

• a wolf

• a drop of water

• a heart

Tags

NGSS.MS-LS1-1

Based on the graph, which of the following statements is accurate?

• Prior to 33 days, the population of medium aliens was decreasing

• After 33 days, the population of medium aliens was decreasing

• After 33 days, none of the aliens changed form

• After 33 days, the total number of aliens in each state was unchanged

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Based on the graph, if you chose an alien at random on day 20, what form would it most likely be in?

• thin

• medium

• thick

• all three are possible

Tags

NGSS.MS-LS2-1

The United States Arctic National Wildlife Refuge is a large portion of Alaska that is protected from construction, which would affect the land and resources that are available to living things. Which term is used to describe all the species that live in the Arctic National Wildlife Refuge?

• population

• community

• ecosystem

• species

Which list of items would an ecological scientist most likely include when describing a forest community?

• deer, water, tree

• deer, wolf, tree

• deer, wolf, rock

• tree, water, soil

Tags

NGSS.MS-LS2-2

Which term is used to describe a group of arctic foxes that live in part of Alaska’s Arctic National Wildlife Refuge?

• ecosystem

• community

• population

• biome

Which of the following would correctly describe one female arctic fox?

• biome

• species

• ecosystem

• organism

Which describes a group of organisms that is considered a species?

• They can breed and produce offspring that can breed.

• They are members of the same community.

• They live in the same ecosystem, community, and biome.

• They have similar physical characteristics

Tags

NGSS.MS-LS4-4

The group of polar bears that live along the eastern coast of Russia makes up:

• an organism

• a community

• an ecosystem

• a population

When a scientist is conducting research about all the plants and wildlife in the Mojave Desert as well as the desert’s resources, such as water and soil, the scientist is studying

• a community

• a population

• a species

• an ecosystem

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3