Practice Test

Term for an organism that feeds itself by eating other things.

• 
  heterotroph

• 
  herbivore

• 
  autotroph

• 
  plant

In a science class, Liam, Ethan, and Hayleigh are discussing how plants obtain their food. They come across the term 'autotroph'. Autotroph means ....

• something that feeds itself by eating other things

• feeds itself by breaking down dead material

• feeds itself, by producing its own food - photosynthesis

• feeds itself by passing energy down the pyramid

Which TWO organisms are herbivores - receiving energy from only plants

• 
  zebra

• 
  gazelle

• 
  vulture

• 
  

  lion

After a volcano destroys the land, ________________ succession takes place.

• Secondary

• Primary

• 
  Tertiary

• Important

Which best describes a climax community.

• A community that is continually growing

• A community that has reached its total population potential

• 
  A community that is new and progressing towards its maximum potential

• The community that first begins an ecosystem after ecological collapse

To avoid dangerous fumes the student should _______the odor toward his nose.

• 
  blow

• 
  raft

• 
  waft

• 
  stir

What should be done with chemical waste after completing an experiment?

• Leave it at your station

• 
  Dump it in the trash

• Dispose of it properly

• 
  Pour it down the sink

What is the safest way to smell a substance during a lab?

• Lean over and smell it directly

• Waft the air toward your face

• Put it on your hand and smell it

• Lift the substance to your nose

What is the relationship between ecological succession and equilibrium in an ecosystem?

• 
  Ecological succession helps maintain equilibrium in an ecosystem.

• 
  There is no relationship between ecological succession and equilibrium.

• 
  Ecological succession prevents ecosystems from ever reaching equilibrium.

• Ecological succession and equilibrium are the same thing

What do all the sources of groundwater contamination shown have in common?

• caused by humans so it is preventable

• naturally occurring so it cannot be prevented