Changes in Ecosystems

Which of the following is not a daily change that happens in our ecosystems?

• A 24-hour day/night cycle

• 2 high and low tides each day

• Daily weather changes

• Warming/cooling climate changes

Tags

NGSS.MS-ESS2-5

Which of the following is NOT a response to daily changes in our ecosystem?

• Phototropism

• Geotropism

• Circadian rhythm

• Dormancy

What is called when plants will grow towards light and roots will grow away from it?

• Geotropism

• Phototropism

• Eutrophication

• Dormancy

Tags

NGSS.MS-LS1-5

What is geotropism?

• The movement of plants in response to light

• The movement of plants in response to gravity

• The movement of plants in response to touch

• The movement of plants in response to temperature

Our bodies naturally produce and release melatonin at night to make us feel sleepy and cortisol in the day to make us feel more alert. This response is a great example of-

• a circadian rhythm

• phototropism

• geotropism

• dormancy

Tags

NGSS.HS-LS1-3

Many flowers open and close at specific times of the day, and some plants even release their fragrance during specific times of the day to attract pollinators. This behavioral response to day/night is an example of -

• circadian rhythm

• geotropism

• photosynthesis

• phototropism

Which of the following is NOT a seasonal change in an ecosystem?

• Changes in temperature

• Changes in daylight

• Changes in foliage

• Changes in precipitation

• Changes in sea level

Tags

NGSS.MS-ESS1-1

What is the correct description of the amount of precipitation an ecosystem gets when it comes to seasonal changes?

• There is more rainfall toward summer and less rainfall toward winter.

• There is more rainfall toward winter and less rainfall toward summer.

• There is the same amount of rainfall in the summer as there is in the winter.

• There is more rainfall toward the winter and less toward spring.

Tags

NGSS.MS-ESS2-6

What occurs when normal physical functions (metabolism) are slowed down or suspended to help survival?

• Dormancy

• Phototropism

• Geotropism

• Circadian rhythms

In the winter, snakes will go underground or in a den. They will become physically and mentally inactive, and they will go months without drinking or eating. This response is called-

• hibernation

• inactivation

• extinction

• sublimation