Look at the graph below. Which chemicals likely cause birth defects?
penicillin and epinephrine
thalidomide and actinomycin
venlafaxine and thalidomide
acetaminophen and epinephrine
What is the primary function of organelle W?
storing nutrients
providing energy
providing protection
storing cellular information
Which statement below best summarizes why food poisoning is a common bacterial infection?
In the right conditions bacteria reproduce rapidly, excreting harmful wastes.
Bacteria are much smaller than eukaryotic cells and often use them as hosts.
Breaking down harmful chemical substances in the environment is important.
Outside of a living cell, a bacteria does nothing and remains inactive.
These animals all belong to the same group because they all have
opposable thumbs.
large paws.
stripes.
fur.
Four samples are shown below. Which sample best represents a compound?
sample A
sample B
sample C
sample D
