Ecosysystems and Energy Transfer

According to the food web, what can a grizzly bear can receive energy from?

• grass

• a rabbit

• elk

• all of these

Answer explanation

all of these

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Select each correct organism

• grass

• grasshopper

• frog

• heron

Answer explanation

The grasshopper, frog and heron are all consumers.

Producers are organisms that use light energy from the Sun to make food. Which of the following is an example of a producer?

• deer

• mushroom

• grass

• wolf

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the role of the turtle in the food chain shown?

• consumer

• mammal

• decomposer

• producer

Answer explanation

The turtle is a CONSUMER.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

This gazelle is caught and eaten by a cheetah. When this cheetah dies, it is eaten by a lion. When the lion dies, fungi and microorganisms break down its body, and put the nutrients from it in the soil. Grass then uses these nutrients to grow.

What do the arrows in the above diagram show?

• the flow of energy through this ecosystem

• The balance of power in this ecosystem

• the flow of water through this ecosystem

• They point from one organism to its source of food

Answer explanation

This diagram shows the flow of energy through this system.

Tags

NGSS.MS-LS2-3

Which of the following describes what is taking place in the process shown above?

• Matter and energy are cycling through an ecosystem

• Water is making one complete pass through the water cycle

• Old rocks are being broken down, and new ones are being created.

• Organisms are using up some of the Sun's energy, causing the sun to become weaker

Answer explanation

Matter and energy are cycling through an ecosystem

Tags

NGSS.MS-LS2-3

The arrows in the food web above show the direction in which energy flows. The food web is a _________________.

It shows that all the ______________ animals get by eating other organisms comes from the Sun.

• model

• experiment

• energy

• vitamins

• light

Answer explanation

The food web is a MODEL, and it shows all the ENERGY animals get by eating other organisms.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

An organism that makes its own food is known as a _______.

• decomposer

• carnivore

• consumer

• producer

Answer explanation

An organism that makes its own food is known as a PRODUCER.

In the food chain above, which organism makes its own food?

• sunlight

• rose

• eagle

• honeybee

• skunk

Tags

NGSS.MS-LS1-6

In this food chain, _______ get energy directly from _______.

• moths; bats

• bats; moths

• bats; flowers

• flowers; moths

Answer explanation

The BATS get energy directly from the MOTHS.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3