2.13: Flow of Matter in Ecosystems

Multiple Choice

Precipitation and evaporation are important components of the

• nitrogen cycle.

• water cycle.

• carbon cycle

• warming cycle.

Multiple Choice

An aquatic food web consists of phytoplankton → krill → seals → sharks. The removal of which component is MOST LIKELY to cause an immediate impact on the food web?

• seals

• sharks

• phytoplankton

• krill

Multiple Choice

The movement of water up plants and its subsequent loss as water vapour from their leaves

• interception

• transpiration

• infiltration

• precipitation

Multiple Choice

Living organisms need Nitrogen to make which of the following?

• Glucose

• Proteins

• Sunlight

• Ultraviolet Radiation

Multiple Choice

How do animals and humans get their nitrogen that they need?

• They use their lungs to breathe it out of the air

• They have to eat plants to get it

• They absorb it from the soil

• They get it by eating the soil bacteria

Multiple Choice

The burning of fossil fuels by cars and factories has most affected the ______________ cycle.

• carbon

• phosphorous

• nitrogen

• water

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​Remember, there will still be assignments in the OMS tomorrow even though CC sessions are optional for some of you!!! The assignments include:

• Weekly Wrap-up #5

• EdPuzzle: Amoeba Sisters - Biogeochemical Cycles​