Ecosystems and Biomes

Which of the following are biotic factors in an ecosystem?

• rain, sunlight, and plants

• plants, animals, and bacteria

• temperature, animals, and plants

• minerals, rain, and wind

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What is a producer's job in an ecosystem?

• to make food and oxygen for animals

• to help grow plants

• to break down dead plants and animals

• to eat plants and other animals and produce carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Why are animals important to an ecosystem?

• they produce oxygen

• they eat bacteria

• they help break down dead plants

• they produce carbon dioxide

Tags

NGSS.MS-LS2-3

What is the difference between a biotic factor and an abiotic factor?

• biotic factors include elements like weather and temperature, while abiotic factors produce carbon dioxide and oxygen

• biotic factors are living things and abiotic factors are non-living things

• biotic factors exist in an ecosystem but abiotic factors do not

• biotic factors are non-living things and abiotic factors are living things

What is an ecosystem?

• the pattern of weather that affects a particular area

• the life cycle of a plant from seed to flower

• all living things in a particular environment like a forest or desert

• a community of organisms that interact with their environment

Which of the following correctly shows the cycle of biotic factors in an ecosystem?

• bacteria produce food and oxygen; animals eat the plants, breathe the oxygen, and produce carbon dioxide; plants break down dead animals and produce minerals

• plants produce food and oxygen; bacteria eat the plants, breathe the oxygen, and produce carbon dioxide; animals break down dead plants and produce minerals that help plants grow

• plants produce food and oxygen; animals eat the plants, breathe the oxygen and produce carbon dioxide; bacteria break down dead plants and animals and produce minerals that help plants grow

• animals produce food and oxygen; bacteria eat plants, breathe the oxygen, and produce carbon dioxide; plants break down dead animals and produce minerals

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What would happen if there were no abiotic factors in an ecosystem?

• plants would be unable to grow and produce oxygen for the animals

• animals would grow and flourish

• the ecosystem would get too much rain

• bacteria would become the consumer instead of the decomposer

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What is climate?

• the home or environment of a plant or animal

• the temperature and precipitation of a particular area

• a major ecosystem made up of many habitats

• a community of animals and plants that interact with their environment

Tags

NGSS.MS-ESS2-6

What is a "niche"?

• The role an organism plays in its habitat.

• The habitat an organism lives in.

• The biological variety and variability of life.

• The principle that you can not have 2 organisms occupying the same niche.

In the deciduous forest, trees lose their leaves in which season?

• spring

• summer

• fall

• winter

Tags

NGSS.MS-ESS1-1