Cycling of Matter

_____________________________feed on both plants and animals.

• Carnivores

• Omnivores

• Herbivores

• Detritivores

Sun + ___________________________ + water = Sugar + Oxygen.

• Nitrogen

• Hydrogen

• Carbon Dioxide

• Oxygen

Plants getting carbon from the atmosphere and humans getting carbon from food as it cycles is known as the __________________________________.

• water cycle

• oxygen cycle

• nitrogen cycle

• carbon cycle

A series of chemical reactions of sunlight, water, and carbon dioxide is called ____________________________.

• cellular respiration

• oxygen cycle

• photosynthesis

• carbon cycle

The main source of energy for most life on Earth comes from the _____________________.

• food

• water

• Sun

• oxygen

Nitrogen, just like water cycles between Earth and its atmosphere and back again is called the _____________________________________________.

• photosynthesis

• water cycle

• nitrogen cycle

• carbon cycle

Sugar = Glucose.

• False

• True

Herbivores feed only on meat or other animals.

• True

• False

A steady increase of greenhouse ________________ can harm ecosystems.

• plants

• water

• air

• gases

Living things that make their own food are called _________________________.

• consumers

• carnivores

• producers

• prey