Nutrient Cycles

What cycle is shown in the diagram?

• The Life Cycle

• The Nitrogen Cycle

• The Carbon Cycle

• The Water Cycle

Why do plants and animals need nitrogen?

• To produce proteins

• To store energy

• To digest food

• To conduct photosynthesis

_________ is water clumping around dust particles to form clouds in the water cycle.

• transpiration

• condensation

• evaporation

• precipitation

How do decomposers help the carbon cycle?

• Carbon is leaked into the atmosphere when fossil fuels are burned.

• Dead, organic matter is broken down and release carbon dioxide into the air

• Volcanoes and fires release large amounts of carbon dioxide.

• Decaying organisms are needed for carbon to be released

Earthworms belong to the phylum ________________.

• Porifera

• Chordata

• Annelida

• Cnidaria

When a consumer dies, it will likely get consumed by _________. (nature's recyclers)

• wolves and bears

• mice and rabbits

• foxes and coyotes

• bacteria and fungi

The weather forecast for tomorrow predicts that the high temperature will be 8 degrees higher above today's temperature. If it is 25 degrees Celsius today, what is the predicted temperature for tomorrow?

• 17 degrees Celsius

• 33 degrees Celsius

• 34 degrees Celsius

• 16 degrees Celsius

Which cycle is shown in the picture?

• The Water Cycle

• The Nitrogen Cycle

• The Carbon Cycle

• The Cell Cycle

The picture shows the effects of human activities in which natural cycle?

• Water Cycle

• Carbon Cycle

• Nitrogen Cycle

Tertiary or third level consumers get the largest amount of the fixed form of nitrogen from eating which level of the energy pyramid?

• Primary producers

• Primary consumers

• Secondary consumers

• Tertiary consumers