Which classification is the best description of humans?
a. herbivore
b. carnivore
c. omnivore
d. decomposer
e. photosynthetic organism
ANSWER: c
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Multicellular animals with pressurized circulatory systems use a three-step process to isolate and eliminate wastes. Arrange these steps in order from earliest to latest
A. filtration; reabsorption; secretion B. secretion; filtration; reabsorption C. filtration; secretion; reabsorption D. reabsorption; filtration, secretion E. secretion; reabsorption; filtration
In many animals that have a high cellulose diet but who are not ruminants, the __________
tends to be large.
a. cecum b. stomach c. large intestine d. pancreas
What is often -- but not always -- a feature that accompanies the evolution of internal fertilization?
A. meiotically-produced oocytes B. synchronized gamete release in a population C. fusion of egg and sperm within the female D. a male intromittent organ
Molecules such as water are referred to as ________ because they are electrically neutral overall but still have partially charged regions
A) electrolytes B) polar molecules C) ions D) covalently charged E) isotopes