4.11

An energy pyramid represents what?

• How much sunlight is available for the ecosystem to use. 

• How much energy a particular organism needs. 

• How much energy is needed to build a pyramid. 

• The amount of energy available to the next 'feeder' in a food web.

Tags

NGSS.MS-LS2-3

In this food chain, what will happen if the frogs become extinct?

• The snakes will increase.

• The grasshoppers will decrease.

• The eagles will remain the same.

• The grasshoppers will increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

The diagram shows part of an aquatic food web for a stable lake ecosystem in Connecticut. What is the source of energy for the algae?

• waves

• sunlight

• bacteria

• rotifers, water fleas and tadpoles

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Use this food chain to answer this question: Which organism is a herbivore?

• grass

• grasshopper

• spider

• bird

• bacteria and fungi

Tags

NGSS.MS-LS2-2

Which organism makes its own food?

• mouse

• snake

• grass

• owl

Tags

NGSS.MS-LS1-6

What is missing from this food chain?

• consumer

• producer

• decomposer

• herbivore

Tags

NGSS.MS-LS2-3

What are all the interconnected food chains in an ecosystem known as?

• food chain

• food web

• producer

• trophic level

Tags

NGSS.MS-LS2-3

An organism that eats both plants and other animals is also known as.....

• Weird

• Autotroph

• Omnivore

• Carnivore

The ___% rule states that only ____% of energy is transferred to the next trophic level.

• 10%

• 25%

• 50%

• 100%

Tags

NGSS.MS-LS2-3

Sound waves travel as _________ waves.

• transverse

• electromagnetic

• longitudinal

• surface

Answer explanation

Sound waves are longitudinal waves. When longitudinal waves travel through any given medium, they also include compressions and rarefactions.

Sound waves fall into three categories: longitudinal waves, mechanical waves, and pressure waves.

Sound waves are not transverse waves because their oscillations are parallel to the direction of the energy transport.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2