The dark middle layer of the eye that prevents the scattering of light is the ____
a. fovea
b. retina
c. sclera
d. choroid
e. cornea
ANSWER: d
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The bonding of two amino acid molecules to form a larger molecule requires the _____
A) release of a water molecule B) release of a carbon dioxide molecule C) addition of a carbon dioxide molecule D) addition of a water molecule E) addition of a water molecule and a carbon dioxide molecule
The vampire squid was placed in the order Vampyromorpha on account of:
a. it has ten arms, but looks like an octopus. b. it appears to drift rather than actively swim. c. it has tentacles that can be coiled up. d. all the above
An antimicrobial with a low therapeutic index is a safer choice compared to a drug with a high therapeutic index.
Answer the following statement true (T) or false (F)
Which pair demonstrates a mutualistic relationship?
a. orchid and its host b. rhizobia and strawberry plants c. soil fungus and soil bacteria d. mistletoe and its host e. mychorrhizae and roots