Ecology Review

The Sun is the source of all energy within an ecosystem. Plants depend on light from the sun in order to perform the process of photosynthesis. Sunlight is an example of what type of factor?

• Biotic

• Abiotic

All living things or organisms in an ecosystem are

• None

• biotic factors

• abiotic factors

What is the difference between the biotic and abiotic factors?

• Biotic factors are living things and abiotic factors are nonliving things.

• Biotic factors are nonliving things and abiotic factors are living things.

Air is a mixture of colorless gases. The air that makes up the Earth's atmosphere consists primarily of nitrogen and oxygen. Air is an example of which type of factor?

• Biotic

• Abiotic

An arctic blast pushed its way through several of the Northern state in the United State. The temperatures dropped below freezing for several days. Temperature is an example of which type of factor?

• Biotic

• Abiotic

What is it called when plants give off water vapor as a waste product?

• condensation
• evaporation
• sublimation
• transpiration

What is the water cycle?

• the 3 forms of water
• the movement of water on, above, or below the surface of the Earth
• when water melts
• when clouds form

The ______________is the beginning source of energy for the water cycle.

• sun
• wind
• geothermal
• volcano

What does NOT produce carbon dioxide?

• Photosynthesis
• Burning Fossil Fuels
• Animal respiration
• Plants decaying

TRUE or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.

• True
• False