Populations and Communities

An organism’s habitat must provide all of the following except

• food

• water

• predators

• shelter

Tags

NGSS.MS-LS2-1

The nonliving parts of an ecosystem are called

• populations

• organisms

• biotic factors

• abiotic factors

Tags

NGSS.MS-LS2-3

To produce their own food, algae and plants use the abiotic factors

sunlight, carbon dioxide, and

• soil

• salt

• water

• bacteria

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

A population is all the members of one species living in a particular

• area

• habitat

• ecosystem

• community

A group of antelope leaving the herd in search of better grassland is an

example of

• immigration

• emigration

• increasing birth rate

• decreasing birth rate

If you count 20 beetles in a garden measuring 5 square meters, the

population density of the beetles is

• 100 beetles per square meter

• 20 beetles per square meter

• 5 beetles per square meter

• 4 beetles per square meter

An organism’s particular role in its habitat, or when and how it survives, is called its

• carrying capacity

• ecosytem

• competition

• niche

All of the following are examples of limiting factors except

• food

• soil

• space

• weather conditions

Tags

NGSS.MS-LS2-1

Which of the following is an example of a predator adaptation?

• a porcupine's needles

• a shark's powerful jaws

• a frog's bright colors

• a plant's poisonous chemicals

Tags

NGSS.MS-LS4-4

A hawk building its nest on an arm of a saguaro cactus is an example of

• commensalism

• mutualism

• parasitism

• predation