Ecosystem

Some beetles break down the remains of dead animals. Some mushrooms break down the remains of dead trees. How do these actions most benefit plants? (5.9A)

• By returning nutrients to the soil

• By releasing oxygen into the air

• By making space for new animals

• By decreasing the population of herbivores

Tags

NGSS.MS-LS2-3

Some facts about birds called cattle egrets are listed in the table. Which of these facts best describes how these birds depend on other animals to survive? (5.9A)

• Fact 1

• Fact 2

• Fact 3

• Fact 4

Tags

NGSS.3-LS2-1

The table lists ways that four organisms obtain energy. Which organism obtains energy without depending on another organism? (5.9A)

• Oak tree

• Mushroom

• Cottontail rabbit

• Mountain lion

Tags

NGSS.MS-LS1-6

a part of the ecosystem like plants, animals and bacteria that require energy to survive and have basic needs that must be met

• living (biotic)

• nonliving (abiotic)

• esential

• ecosystem

Tags

NGSS.MS-LS2-3

A teacher is setting up the terrarium shown below in a science classroom. Which of these organisms is best suited for the terrarium? (3.9A)

• Blue jay

• Lobster

• Snail

• Water lily

Tags

NGSS.MS-LS2-3

Which of these is an example of one living thing depending on another living thing?

• Cat walking on the sand

• Bird building a nest in a tree

• Dog warming in the sunlight

• Squirrel drinking water

Tags

NGSS.MS-LS2-2

All of the following are examples of living things interacting with each other EXCEPT —

• birds preying on insects living in the grass

• squirrels spreading the seeds of trees by burying them

• frogs sleeping in the mud at the bottom of the pond

• fish eating plants and other smaller fish

Tags

NGSS.MS-LS2-2

A plant uses which nonliving components to produce food and oxygen?

• sunlight, water, and carbon dioxide

• sunlight and carbon dioxide

• water, and carbon dioxide

• Soil, ice, and oil

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

An enclosed environment with a layer of dirt at the bottom in which plants and small animals can live

• essential

• interaction

• nonliving (abiotic)

• terrarium

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-5

A student makes the following list of observations during a trip to the zoo. Which number is an example of an organism interacting with a nonliving part of its environment?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1