Trial hypothesis independent variable health reading behavior observation
trial 1: anglerfish high light = 10 lux
low light = 2 lux

Which group of chordates does  notpossess true backbones?                 a.  birds      b.  frogs and toads      c.  lampreys      d.  crocodilians

What terms describes being out of water after being submerged

Which statement is true for bacteria a. bacteria have complex internal structures b. all bacteria are spiral in shape c. all bacteria cause disease in animals d. bacteria break down some foods