Aquatic Ecosystems Review

Open Ended

Watch the video. As you watch, think about what is happening to the water, the plants, and the animals.

Draw

Draw and label 3 biotic factors in a river ecosystem.

Multiple Choice

What are the key characteristics of aquatic ecosystems?

• They are found only in freshwater

• They support a wide variety of life

• They are always warm

• They have no plants

Multiple Choice

The graph shows the distribution of water on Earth's surface. What can be concluded from this image?

• Most of the the water available on Earth is drinkable.

• Most of the water available on earth is not drinkable

Multiple Choice

According to the graph, what is the relationship between dissolved oxygen and temperature?

• As temperature increases dissolved oxygen increases

• As temperature decreases dissolved oxygen decreases

• As temperature increases dissolved oxygen decreases

• None of the above

Multiple Choice

What factors influence salinity levels in water?

• Rainfall and evaporation

• Temperature changes

• Saltwater intrusion

• Wind and glacial melting

Multiple Choice

According to this image, the pH of the precipitation in 1994 where we live was...

• Less than 4.3

• 4.5-4.6

• 4.7-4.8

• 4.9-5.0

Open Ended

What are some causes of Ocean Acidification?

[ Explain how this cause is impacting the ocean. ]

Multiple Choice

What do some marine creatures do with the carbonate ion?

• use it as a food source

• use it as a defense mechanism

• use it to build shells and exoskeletons

• use it to cool body temperatures

Multiple Choice

Eutrophication, excess nutrients getting into waters, can cause algal blooms. Why is that bad?

• Because it's gross.

• Some algae is bacteria.

• Algae can use up all the oxygen and some produce toxins.

• The algal bloom is just not pretty so it makes the water ugly.

Multiple Choice

What is letter D?

• Cont. Shelf
• Mid-Ocean Ridge
• Volcanic Island
• Seamount

Multiple Choice

Upwelling is associated with

• a decrease in access to nutrients for phytoplankton
• cooler, nutrient-rich waters being pushed up from deeper ocean waters
• temperature gradients moving water from the equator to the poles
• an increase in human fatalities

Multiple Choice

What are the main characteristics of freshwater ecosystems?

• They contain saltwater

• They are found in deserts

• They include rivers, lakes, and ponds

• They have high salinity

Multiple Choice

What are the ecosystem services provided by freshwater ecosystems?

• Drinking water

• Water purification

• Flood mitigation

• Treatment of human and industrial waste

Open Ended

What types of freshwater ecosystems are located by you? What are some of their abiotic and biotic factors?

Multiple Choice

What are the main components of food webs in lakes and ponds?

• Fish

• Plankton

• Algae

• Insects

Multiple Choice

What are the types of moving (running) water mentioned in the text?

• Lakes

• Rivers

• Oceans

• Ponds

Multiple Choice

What is the primary reason wetlands are considered important for environmental health?

• They are a major source of freshwater.

• They provide unique recreational areas.

• They act as natural water filters.

• They are rich in mineral deposits.

Multiple Choice

At which of these depths of water are more organisms able to live?

• 1000m

• 6000m

• 10000m

• 10m

Categorize

Options (8)

Zebra

Rock

Spider

Temperature

Rain

Tree

Bacteria

Sunshine

Classify the following items into appropriate scientific categories based on their fundamental characteristics:

Biotic Factors

Abiotic Factors

Multiple Choice

What are the three zones of the ocean as divided by ecologists?

• Intertidal Zone

• Coastal Ocean

• Open Ocean

• Deep Sea

Multiple Select

What adaptations do organisms in intertidal zones have to survive?

• Waves

• Currents

• Air and sun exposure

• Extreme temperature changes

Multiple Choice

What are some examples of highly productive areas in coastal oceans?

• Kelp forests and coral reefs

• Deserts and tundras

• Open ocean and deep sea

• Freshwater lakes

Multiple Select

What are the three main zones of the open ocean based on light penetration?

• Photic zone

• Aphotic zone

• Disphotic (twilight) zone

• Benthic zone

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident