Weakened bones, kidney stones, and malfunctioning muscles are symptoms of
a. hyperthyroidism.
b. Grave's disease.
c. acromegaly.
d. hyperparathyroidism.
e. Wilson's disease.
D
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The organ responsible for excretion of both urine and
feces “F” is called the a. mouth. b. crop. c. gizzard. d. secreting portion of stomach. e. cloaca.
Genetic basis of bacterial antimicrobial drugs resistance includes mutation, acquisition of plasmids or transposons
a. true b. false
Which of the following environments is thought to have promoted the dehydration synthesis of polypeptides and other macromolecules from smaller organic monomers on a prebiotic Earth?
A) freshwater swamps and marshes B) deep-sea hydrothermal vents C) hot sand, clay, or rock along the seashore D) sediments at the bottom of the world's oceans
The following figure shows studies in a stream where enclosures were set up either with trout or with no trout. Which statement is a correct interpretation of the graph about trout, invertebrates, and algae? 
A. Trout do not seem to affect the algae production; only the invertebrate populations are affected. B. If trout are present in a system, algae production is low and invertebrate population levels are also low. C. Trout do affect the algae production but not the invertebrate populations. D. If trout are present in a system, algae production is high and invertebrate population levels are also high. E. If trout are present in a system, algae production is high and invertebrate population levels are low.