Corrections - Energy Flow

The source of all energy in Ecosystems is

• Producers

• Animals

• Tertiary Consumers

• The Sun

Answer explanation

Animals (including tertiary consumers) depend directly or indirectly on producers for their energy. Since producers get all their energy from the sun, ALL energy in ecosystems comes from the sun.

Tags

NGSS.MS-LS2-3

Which of these is the most likely food chain?

• Wolf -> Fox -> Rabbit -> Grass

• Wolf <- Fox <- Rabbit <- Grass

• Grass <- Fox <- Rabbit <- Wolf

• Grass -> Fox -> Rabbit -> Wolf

Answer explanation

Grass produces sugars, which are used by the rabbits for energy to live and grow. The Fox gets its energy from the rabbits, and wolves get their energy from the Foxes.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Look at the food web. Which could occur if the Ringtails became extinct?

• Pika Population could increase

• Competition could increase between Coyotes, Bobcats, and Mountain Lions

• Both of these

• Neither of these

Answer explanation

There are often multiple impacts on food webs when an organism becomes extinct.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Look at the food web. Which organisms would lose a food source if the mule deer became extinct?

• Mountain Lion

• Coyote

• Bobcat

• Both Mountain Lions and Coyotes

• All of the Above

Answer explanation

Be sure to check the energy flow using the arrows. Which organism(s) depend on the Mule Deer for food

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

How does available energy compare at different trophic levels?

• Producers have less available energy than primary consumers

• Producers have more available energy than primary consumers

• Tertiary consumers have more available energy than secondary consumers

• Primary consumers have less available energy than secondary consumers

Answer explanation

Energy is LOST as you go up the levels of the pyramid. Producers have the most energy in the ecosystem.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

How is energy transferred between trophic levels

• All of the energy is transferred as chemical energy through consumption
• Some is transferred as chemical energy through consumption, the rest is lost through heat
• Some is transferred as chemical energy through consumption, the rest is lost through decomposers
• Some of the energy transfers through heat to the next trophic level, the rest is lost as chemical energy

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which would be the best way to show a single path of energy flowing through an ecosystem?

• A Food Web
• An Energy Pyramid
• A Food Chain
• A Tragedy of the Commons

Tags

NGSS.MS-LS1-6

Which would be the best way to show the many different ways that energy can flow through an ecosystem?

• A Food Web
• An Energy Pyramid
• A Food Chain
• A Tragedy of the Commons

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of these shows you how much energy is available at each tropic level of an ecosystem?

• A Food Web
• An Energy Pyramid
• A Food Chain
• A Tragedy of the Commons

Which of these is best to show which organisms consume each other? (Select all that apply)

• A Food Web
• An Energy Pyramid
• A Food Chain
• A Tragedy of the Commons

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3