Ecology and Population Dynamics Quiz

Evaluate the impact of removing a top predator from a trophic level in an ecosystem. What is the most likely outcome?

• Increase in autotroph population

• Decrease in herbivore population

• Increase in herbivore population

• No change in the ecosystem

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Create a food web that includes at least one autotroph, one herbivore, and one carnivore. Which of the following best represents the correct sequence?

• Grass → Rabbit → Fox

• Fox → Grass → Rabbit

• Rabbit → Fox → Grass

• Grass → Fox → Rabbit

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Analyze the role of autotrophs in an ecosystem. Which statement best describes their function?

• Autotrophs decompose organic material.

• Autotrophs consume other organisms for energy.

• Autotrophs produce organic compounds from sunlight.

• Autotrophs are primary consumers.

Tags

NGSS.MS-LS2-3

Evaluate the effect of a limiting factor on a population's growth. Which scenario is most likely?

• Unlimited growth due to abundant resources

• Population decline due to disease

• Population stabilization at carrying capacity

• Rapid growth followed by a sudden crash

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Create a scenario where a change in a limiting factor affects the carrying capacity of an environment. Which change would most likely increase the carrying capacity?

• Decrease in available water

• Increase in food supply

• Increase in predator population

• Decrease in habitat space

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Analyze the relationship between carrying capacity and population size. Which statement is accurate?

• Carrying capacity is always greater than population size.

• Population size can exceed carrying capacity indefinitely.

• Carrying capacity limits the maximum population size.

• Population size has no relation to carrying capacity.

Tags

NGSS.HS-LS2-1

Evaluate the consequences of introducing a new autotroph species into an ecosystem. What is the most likely effect?

• Decrease in biodiversity

• Increase in competition for resources

• Decrease in herbivore population

• No impact on the ecosystem

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Create a model to demonstrate how limiting factors can affect population dynamics. Which factor would you include to show a decrease in population growth?

• Abundant food supply

• High birth rate

• Limited shelter availability

• Low predator presence

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Analyze the impact of autotrophs on the carbon cycle. Which process is primarily involved?

• Respiration

• Photosynthesis

• Decomposition

• Nitrogen fixation

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Evaluate the role of trophic levels in energy transfer within an ecosystem. Which statement is true?

• Energy is gained as it moves up trophic levels.

• Energy is lost as heat at each trophic level.

• Energy remains constant across trophic levels.

• Energy is only transferred between autotrophs.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3