Which object is most like a hydrostatic skeleton?
A) a water balloon
B) a hot-air balloon
C) a piece of M&M candy
D) a bowling ball
Answer: A
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The genomes of mammalian mitochondria contain
A. a total of 37 genes. B. genes for proteins used in oxidative phosphorylation. C. genes whose products are used in translation of mRNA. D. ribosomal genes. E. All of the items listed are correct.
Which of the following is found most often for protostomes?
a. spiral, indeterminate cleavage b. radial, indeterminate cleavage c. spiral, determinate cleavage d. radial, determinate cleavage e. radial cleavage in juveniles, determinant cleavage in adults
Most fresh water exists as:
a. ice b. soil water c. aquifer water d. surface water (lakes, rivers) e. atmosphere
Why are early symptoms of a Francisella tularensis infection often difficult to diagnose?
A) Symptoms are often mild and go unnoticed. B) The bacteria do not grow in culture. C) Patient symptoms are the only indication that leads to a diagnosis. D) Symptoms progress so slowly it can be months before the patient seeks medical care. E) Early symptoms can vary based on how the bacteria are transmitted.