Ecosystem Feedback Quiz

Why is positive feedback called 'positive'?

• Because it is always beneficial

• Because it amplifies a particular effect or change

• Because it reduces changes

• Because it stops all processes

Tags

NGSS.MS-LS2-4

What happens when lynx eat snowshoe hares in terms of feedback?

• It creates a positive feedback loop

• It disrupts the ecosystem permanently

• It maintains a more stable balance

• It causes immediate extinction

Tags

NGSS.MS-LS2-4

How do feedback loops in ecological systems function according to the text?

• They function independently.

• They create regular patterns.

• They are always predictable.

• They only involve direct interactions.

Tags

NGSS.MS-LS2-3

What role do negative feedbacks play in ecological systems?

• They disrupt the ecosystem.

• They maintain a rhythm.

• They eliminate positive feedbacks.

• They have no role.

Tags

NGSS.HS-LS1-3

What is the nature of feedback loops in natural communities?

• They are always direct.

• They are simple and linear.

• They are indirect and complex.

• They are predictable.

Tags

NGSS.MS-LS2-3

What is the result of adding one negative link in a feedback loop?

• It strengthens the feedback loop.

• It reverses the feedback force entirely.

• It has no effect on the feedback loop.

• It creates a new feedback loop.

Tags

NGSS.HS-LS1-3

How are tropical rainforests described in the text?

• Like a barren patch

• Like a constant drone

• Like a lush panoply of sounds

• Like a garage band

What is the effect of self-damping feedback in ecosystems?

• It makes them silent

• It stabilizes them

• It increases nutrient turnover

• It decreases species diversity

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4