Ecosystem Dynamics & Human Activity

If a plant experiences a phototropism, then it will do what?

• Grow toward or away from light. 
• Grow away from light. 
• Grow toward light.
• Grow in response to gravity. 

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NGSS.MS-LS1-5

Which of the following responses is a plant growing toward or leaning toward light?

• thigmotropism
• hydrotropism
• phototropism
• gravitropism

Tags

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What causes animals to hibernate? 

• very cold air temperatures 
• lack of food
• a need to survive
• all of the above 

Tags

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Instead of hibernating, some animals _______ to warmer places. 

• survive
• sleep
• burrow
• migrate

When an animal wakes from hibernation it will have less ___________ than it did before hibernation. 

• body fat
• fur
• burrow 
• relatives 

Tags

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What is hibernation?

• When an animal goes to a warmer place in the winter.

• When an animal goes to sleep in the winter.

• When an animal plays in the winter.

• When an animal enters a state of inactivity and lowered metabolism on a seasonal basis

A plant drops its leaves and appears to be dead.

• Hibernation

• Migration

• Dormancy

A period of a plant when is does NOT grow

• spore
• stamen
• nutrient
• dormancy

Eutrophication is

• too few nutrients in a body of water.

• too many nutrients in a body of water.

• high acid levels in a body of water.

• high alkalinity levels in a body of water.

Tags

NGSS.MS-LS2-1

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Nutrients cause what effect in our creeks and rivers?

• limestone to disappear.

• dissolved Oxygen levels to rise.

• algae to grow more rapidly.

• bacteria populations to decrease.

Tags

NGSS.MS-LS2-1

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