Ecology and Energy Flow

Why might an organism have more than one arrow coming FROM them in a food web?

• More than one organism may eat them.

• They may eat more than one other organism.

• This organism gets its energy from multiple sources.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

The populations of which organisms will most likely increase as a result of a disease that suddenly reduced the population of Texas horned lizards?

• Grasses and ants

• Ants and grasshoppers

• Grasshoppers and Texas Cottonmouths

• Texas cottonmouths and red shouldered hawks

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

How much energy is passed from one trophic level to the next? (a)  

• 1%

• 10%

• 50%

• 100%

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which type of autotroph uses sunlight to make food?

• Chemoautotrophs

• Heterotrophs

• Photoautotrophs

• Carnivores

Tags

NGSS.MS-LS1-6

Which organisms are considered primary consumers?

• Producers

• Omnivores

• Carnivores

• Herbivores

Tags

NGSS.MS-LS2-3

What is a food web?

• A group of primary consumers

• A single pathway of energy flow

• A realistic representation of consumption relationships in ecosystems

• A linear sequence of who eats whom

Tags

NGSS.MS-LS2-3

What role do decomposers play in an ecosystem?

• They eat live plants

• They break down dead material and wastes

• They capture sunlight

• They are primary consumers

Tags

NGSS.MS-LS2-3

Which of the following is an example of a secondary consumer?

• Human

• Cow

• Grass

• Eagle

Tags

NGSS.MS-LS2-3

What is the main source of energy for a photoautotroph?

• Chemicals

• Sunlight

• Organic compounds

• Water

Tags

NGSS.MS-LS1-6

What is the role of a tertiary consumer in a food chain?

• It eats primary producers

• It eats primary consumers

• It eats secondary consumers

• It decomposes organic material

Tags

NGSS.MS-LS2-3