Adding and Subtracting Rational Expressions

The video explains how food chains illustrate the flow of energy from the sun to producers, consumers, and decomposers. It describes the roles of herbivores, carnivores, and omnivores in ecosystems, and highlights the importance of decomposers in recycling nutrients. Examples of food chains in different environments, such as ponds and deserts, are provided to illustrate these concepts.

What is the primary source of energy for most food chains?

• The Sun

• The Moon

• The Soil

• The Ocean

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What do we call organisms that make their own food?

• Predators

• Producers

• Decomposers

• Consumers

Which of the following is a primary consumer?

• Hawk

• Gopher

• Lion

• Weasel

What term describes animals that eat mainly plants?

• Decomposers

• Carnivores

• Omnivores

• Herbivores

Which of these animals is an example of a carnivore?

• Hawk

• Goat

• Chipmunk

• Elephant

What do we call animals that eat both plants and animals?

• Carnivores

• Herbivores

• Omnivores

• Decomposers

Which of the following is an example of an omnivore?

• Raccoon

• Heron

• Snake

• Frog

Tags

NGSS.MS-LS2-2

What role do decomposers play in the food chain?

• They break down dead organisms

• They produce their own food

• They hunt other animals

• They consume plants

Tags

NGSS.MS-LS2-3

In a pond food chain, what might young mayflies eat?

• Coyotes

• Sunfish

• Blue Heron

• Algae

What is the final step in a food chain?

• Consumers

• Producers

• Decomposers

• Predators

Tags

NGSS.MS-LS2-3