Matter and Energy in Organisms

An organism that makes its own food is known as

• consumer
• scavenger
• producer
• decomposer

What is an organism called that feeds on another organism?

• consumer

• scavenger

• producer

• decomposer

All matter is made of what

• energy

• atoms

• electrons

• compounds

Molecules are 

• 2 atoms bound together 
• 2 elements bound together 
• 2 or more atoms mixed together
• 2 or more atoms bound together 

Uses dead plants and animals for energy.

• worm
• grass
• rabbit
• none

If there were no decomposers, which of the following would most likely happen?

• Animals would start performing photosynthesis.

• Plants and animals would remain living for a longer period of time.

• The amount of dead animal matter would decrease.

• Plants would lack nutrients they receive from decomposers.

An organism that return matter from dead plants and animals back to the soil is called a ____________?

• carnivore

• decomposer

• herbivore

• omnivore

Which best describes how decomposers help support life in an ecosystem?

• Decomposers add nutrients to the soil.
• Decomposers provide a habitat in the ecosystem.
• Decomposers add producers to the ecosystem.
• Decomposers provide energy for consumers.

What is the name of the process where the remains of living things rot, decay or break down?

• Disintegration
• Dissolve
• Decomposition
• Recycling

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following is the correct equation for PHOTOSYNTHESIS?

• CO₂ + light + H₂O --> O₂ + Sugar

• CO₂ + sugar + H₂O --> O₂ + light

• O₂ + light + H₂O --> CO₂ + Sugar

• CO₂ + O₂ + H₂O --> Light+ Sugar