Milestones Science Review Ecology

Which feature would be important in telling apart an animal from a plant?

• ability to reproduce

• ability to survive in the desert

• ability to live underwater

• ability to move from place to place

Juan and Edward are sorting plants into groups. They have two sets of groups labeled: vascular and non-vascular and flowering and non-flowering. They must place the moss plant into one of the groups. Juan wants to sort the moss into non vascular, but Edward says it is non-flowering. Who is correct?

• Edward

• Juan

• Both

• Neither

A large classification of living things is made up of organisms that have many cells and use sunlight to make food. Which kingdom is the classification for such organisms?

• animals

• bacteria

• plants

• fungi

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Why are microorganisms important?

• Some produce oxygen.

• Some are food sources for other organisms.

• Some are nutrient recyclers.

• All of the reasons are correct.

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NGSS.MS-LS2-3

Ava observed moss growing on rocks and trees in a shady and moist area of a forest. The moss was very short. She also observed that no moss grew in dry or sunny areas. Which of the following is true about the moss?

• Moss is a vascular plant, so it has true leaves and roots.

• Moss is a nonvascular plant, without true leaves or roots.

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NGSS.MS-LS1-5

NGSS.MS-LS2-1

Some plants produce a large number of seeds. The more seeds that are produced, the more likely that some of them will survive, germinate, and grow. Based on this information which plant is the best example of this life cycle?

• Plant A: 45 seeds produced

• Plant B: 61 seeds produced

• Plants C: 5 seeds produced

• Plant D: 21 seeds produced

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NGSS.MS-LS2-1

Deposition of sediments can change the depth of a lake over time. A student wants to make a model that shows how this process takes place. Which model would provide data about changes in the depth of a lake caused by deposition?

• Fill a beaker with water. Slowly allow the water to evaporate from the beaker. Measure the change in

  the depth of the water.

• Fill a beaker with water. Slowly drop sand, gravel, and dead plant material into the beaker. Measure

  the change in the depth of the water.

• Fill a plastic box with water. Put a hose in the water on one end of the box and turn the water on to a

  slow flow. Measure the depth of the water when the box is full.

• Fill a plastic box with sand, gravel, and dead plant material. Put a hose in the middle of the box and

  turn the water on to a slow flow. Measure the depth of the water when the box is full.

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NGSS.MS-ESS2-2

• The student’s claim is correct; the evidence in the picture shows that both valleys were formed by the

  constructive force of deposition because flowing water carries large rocks from far away and drops

  them along a river, making the banks taller.

• The student’s claim is correct; the evidence in the picture shows that both valleys were formed by the

  destructive forces of weathering and erosion because flowing water breaks down rock and carries the

  small pieces downstream.

• The student’s claim is not correct; the evidence in the picture shows that valley 1 was formed by the

  destructive forces of weathering and erosion because flowing water breaks down rock and carries the

  small pieces downstream, but valley 2 was formed by the constructive force of deposition because

  flowing water carries large rocks from far away and drops them along a river, making the banks taller.

• The student’s claim is not correct; the evidence in the picture shows that valley 1 was formed by

  the constructive force of deposition because flowing water carries large rocks from far away and

  drops them along a river, making the banks taller, but valley 2 was formed by the destructive forces

  of weathering and erosion because flowing water breaks down rock and carries the small pieces

  downstream.

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Which of the following is a primary consumer in an ecosystem?

• A) Grass

• B) Rabbit

• C) Fox

• D) Eagle

What is the main role of decomposers in an ecosystem?

• A) Produce oxygen

• B) Recycle nutrients

• C) Provide energy

• D) Control population

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NGSS.MS-LS2-3