Fall Midterm Review

The independent variable is always graphed on the

• X-Axis

• Y-Axis

The dependent variable is always graphed on the

• X-Axis

• Y-Axis

Biotic organisms are

Abiotic organisms are

• living

• nonliving

When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.

• Water

• Atmosphere

• Air

How does a lion get the carbon it needs?

• The lion absorbs the carbon given off by transpiration

• The lion breathes in carbon given out by the plant

• Carbon from grass doesn't end up in a lion.

• 
  The lion eats an antelope that ate the grass

Which of the following add carbon dioxide to the atmosphere?

• Volcanoes

• Animal respiration

• combustion of fossil fuels

• all of these

Which describes the relationship between plants and animals in the carbon cycle?

• Plants produce and release oxygen that animals need

• Plants produce and release carbon dioxide that animals need

• Animals produce and release oxygen that plants need

• Animals produce oxygen that plants turn into carbon dioxide

features of environment that are alive or were once alive

• biotic

• abiotic

• inbiotic

• biology

How nitrogen is "fixed" into useable form for plants

• by bacteria in the soil

• by water

• through photosynthesis

• by animals