The cell membrane of animal cells contains which lipid not seen in plant cells?
a. phospholipid
b. glycolipid
c. unsaturated fats
d. cholesterol
e. fatty acids
D
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Substances NOT usually found in normal human urine are
A. certain drugs. B. urea and uric acid. C. water molecules. D. glucose molecules. E. K+, H+, and other ions.
A lichen is a composite organism made up of:
a. two different fungi b. a fungus and an autotroph c. a fungus and a gymnosperm d. a fungus and an amoeba e. a fungus and a sporozoan
In the absence of environmental sources of water, such as precipitation or condensation, how would water get into the pitcher of a carnivorous plant?
A. through the phloem B. from the fruit C. from the cuticle D. through the xylem E. from the leaves
In nutrient-rich water, photosynthetic protists may
undergo population explosions known as __________. Fill in the blank(s) with the appropriate word(s).