All living things are made of _______, and all living things need _______. 

• matter, plants
• energy, matter
• matter, energy

Matter can by _____________ over and over again, and energy is needed for recycling matter. ___________ is not recycled, but it is converted from one form to another.

• destroyed,  matter
• recycled, energy
• destroyed, energy

During ____________, _____________ convert light energy into the chemical energy in sugar molecules. 

• chemosynthesis, consumers
• chemosynthesis, producers
• photosynthesis, producers

Some sugar molecules are broken down as _________ for the plant. Other sugar molecules as used as part of other molecules that become part of the plant's ________.

• matter, leaves
• energy, leaves
• energy, body

Some producers don't rely on light for energy. Bacteria near hydrothermal vents use sulfur molecules to produce their own ________. Producing energy-rich nutrient molecules from chemicals is called ________.

• consumers, photosynthesis
• photosynthesis, chemosynthesis
• food, chemosynthesis

How can energy be transferred from one organism to another?

• The energy stored in the molecules of one organism is transferred to another organism.
• The matter stored in the molecules of one organism is transferred to another organism.
• The photosynthesis stored in the molecules of one organism is transferred to another organism.

Organisms use energy to heal and repair themselves and grow or to stay warm. Organisms take food to release its energy and use it for ____________ and ___________ or transform it into _________.

• maintenance, growth, heat
• photosynthesis, chemosynthesis, producers
• chemosynthesis, photosynthesis, heat

What is a food chain?

• A chain that shows how heat passes from organism to organism.
• A way of showing how matter and energy pass from one organism to another.
• A representation of all the predator-prey relationships in a community.

What type of organisms are the first step in a food chain?

• Consumers
• Predators
• Producers

Examples of producers:

• flies, fungus, and termites
• plants and organisms capable of chemo or photosynthesis
• lions, deer, and shrubs