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02 - Freshwater Ecosystems

02 - Freshwater Ecosystems

Assessment

Presentation

•

Science

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12th Grade

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Practice Problem

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Easy

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NGSS
MS-LS2-3, MS-LS2-4, MS-ESS2-1

+5

Standards-aligned

Created by

Rachel von Bodungen

Used 4+ times

FREE Resource

21 Slides • 22 Questions

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Open Ended

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How do changes in Earth's surface, such as pollution or resource management, impact aquatic ecosystems and their sustainability?

4

Multiple Choice

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Why is it important to study aquatic ecosystems in understanding Earth's environmental systems?

1

Because they cover most of Earth's surface and influence global processes

2

Because they are isolated from other ecosystems

3

Because they only contain fish and plants

4

Because they do not interact with human activities

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Fill in the Blank

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Ponds are generally ___ than lakes.

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Multiple Choice

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What type of plants are found in the littoral zone that root at the bottom and pass through the water surface?

1

Floating plants

2

Emergent plants

3

Submerged plants

4

Phytoplankton

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Multiple Select

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Which of the following are true about the profundal zone in lakes?

1

It is cold and aphotic.

2

It supports emergent vegetation.

3

It is located beneath the limnetic zone.

4

It receives little to no sunlight.

14

Multiple Choice

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Which zone in a lake is nearest to the shore and characterized by warm, shallow, sunlit waters with emergent plants?

1

Limnetic zone

2

Profundal zone

3

Littoral zone

4

Benthic zone

15

Open Ended

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Explain how the characteristics of the limnetic zone differ from those of the littoral zone in lakes and ponds.

academic vocabulary : salinity, DO, light, nutrient availability, temperature, benthos, nekton, shallow, deep

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Multiple Choice

Compare the nutrient levels and turbidity between oligotrophic and eutrophic lakes.

1

Oligotrophic lakes have high nutrient levels and high turbidity, while eutrophic lakes have low nutrient levels and low turbidity.

2

Oligotrophic lakes have low nutrient levels and low turbidity, while eutrophic lakes have high nutrient levels and high turbidity.

3

Oligotrophic lakes have high nutrient levels and low turbidity, while eutrophic lakes have low nutrient levels and high turbidity.

4

Oligotrophic lakes and eutrophic lakes both have high nutrient levels and high turbidity.

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Open Ended

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Explain how streams (creeks) and rivers differ in terms of their physical characteristics and the amount of water they carry.

Academic vocabulary - narrow/wide, run off

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Fill in the Blank

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Each section of a river has different properties.

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Multiple Choice

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Which of the following are characteristics of the headwaters or river source?

1

High dissolved oxygen

2

High nutrient levels

3

Warm water temperatures

4

High turbidity

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Multiple Choice

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Which of the following changes occur as a river moves from its source to the transition zone?

1

The river widens and deepens

2

Water temperature decreases

3

Dissolved oxygen increases

4

Nutrient levels decrease

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Open Ended

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Describe the changes that occur in the transition zone of a river.

Academic vocabulary - DO, temperature, salinity, turbidity, widen, deepen

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Multiple Choice

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What is the main reason floodplains are very fertile?

1

Floodplains receive a lot of sunlight.

2

Floods deposit soil sediments dissolved from upstream, increasing soil nutrient levels.

3

Floodplains are close to mountains.

4

Floodplains have high salinity.

31

Multiple Select

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Which of the following characteristics are found at the mouth of a river as it enters the ocean?

(3)

1

Low dissolved oxygen

2

High nutrients

3

Cold water temperatures

4

High turbidity

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Fill in the Blank

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Wetlands are areas containing soils that are usually ___________ meaning completely saturated in water.

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Multiple Choice

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Which type of wetland is found in low-lying, treeless areas?

1

Swamp

2

Bog

3

Marsh

4

Floodplain

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Multiple Choice

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What distinguishes swamps from other types of wetlands?

1

Swamps are dominated by trees.

2

Swamps have acidic water.

3

Swamps are found in high-altitude areas.

4

Swamps are always dry.

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Open Ended

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Explain how bogs slow decomposition and nutrient cycling, and describe the role of floating mats in bog ecosystems.

Academic vocabulary - acidic, nutrient cycling, floating mats

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Multiple Choice

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Which adaptation helps wetland plants obtain more oxygen for their submerged roots?

1

Floating

2

Carnivorous

3

Emergent

4

Photosynthetic

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Multiple Choice

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Reflecting on today's lesson about aquatic ecosystems, what is one factor that can affect the carrying capacity of an ecosystem?

1

Availability of sunlight

2

Presence of predators

3

Amount of nutrients

4

All of the above

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Open Ended

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How do changes in Earth's surface, such as pollution or resource management, impact the cycling of matter and energy in aquatic ecosystems?

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