Unit 11

Match

Match the following

• Competition

• Predator-Pray

• Symbiosis

A lion and a hyena pack fight over a fresh kill.

An anteater consuming the ants in an anthill

Bacteria in our gut that helps us digest food

• A lion and a hyena pack fight over a fresh kill.

• An anteater consuming the ants in an anthill

• Bacteria in our gut that helps us digest food

Match

Match the following

• Beneficial bacteria in our gut

• Bacterial infection in an open wound

• Bacteria on our skin

• Different bacteria filling in any open space first

• Shellfish feading on bacteria through filtration

Mutualism

Parasitism

Commensalism

Competition

Predation

• Mutualism

• Parasitism

• Commensalism

• Competition

• Predation

Multiple Choice

Multiple Choice

What kind of consumer breaks down dead plants and animals?

• Decomposers

• Herbivores

• Carnivores

• Detritivores

Multiple Choice

• red fox

• black bear

• deer

• rabbit

Hotspot

Which organism is an example of a secondary consumer in this image?

Dropdown

Only ​

Select answer

of energy is given to the next trophic level.  ​

Select answer

is eliminated as waste heat.

Multiple Choice

Which model correctly shows energy flow in a food chain?

Multiple Choice

How is energy "lost" as energy goes up in the pyramid?

• Organisms don't eat enough of the available energy

• Organisms lose some of the energy as heat

• The energy ran away from the community

Multiple Choice

If the seeds, nuts, roots, grass, leaves, and flowers level had 1,000 kcal, how many kcal would be in the hawks and owls level?

• 1,000 kcal

• 100 kcal

• 10 kcal

• 1 kcal

Multiple Choice

What is happening at 1?

• respiration: releasing CO2
• decomposing CO2 in the soil
• photosynthesis: absorbing CO2
• turning CO2 from the atmosphere into organic molecules

Multiple Choice

The diagram shows the flow of organic molecules through an ecosystem. What two processes are identified by the labels X and Y?

• X : Respiration
  Y : Predation
• X : Adaptation
  Y : Decomposition
• X : Fermentation
  Y : Nitrogen Fixation
• X : Decomposition
  Y : Respiration

Multiple Choice

Carbon is used in the process called __________ by plants and algae to make food and the building blocks for growth.

• carbon cycle

• life

• photosynthesis

• decomposition

Multiple Choice

According to this diagram, plants use nitrogen to make _________________________

• bacteria

• animals

• proteins

• decomposers

Multiple Choice

A correct path that nitrogen could take would be

• air -> animals -> plants -> bacteria

• animals -> air -> bacteria -> plants

• bacteria -> air -> plants -> animals

• air -> bacteria -> plants -> animals

Multiple Choice

In the nitrogen cycle, what does label A in the diagram represent?

• Gas

• Clouds

• Carbon dioxide in the atmosphere

• Nitrogen in the atmosphere

Multiple Choice

The end result of ecological succession is usually a(n)

• A.land biome.

• B.aquatic biome.

• C.unstable community.

• D.climax community.

Multiple Choice

Which of the following is not a possible cause of ecological succession?

• A. fire

• B. flood

• C. earthquake

• D. change of season

Multiple Choice

What do the arrows on a food web show?

• Who is bigger

• Flow of energy

• Who is strongest

Multiple Choice

What is the correct order from oldest (happened first) to youngest (happened last) in this pond succession?

• A, B, C, D
• D, C, B, A
• B, A, D, C
• C, D, A, B

Multiple Choice

What is the name given to lichen or algae after a primary succession?

• pioneer species
• volunteer species
• founder species
• conqueror species