In flatworms, the action of ciliated __________ draws interstitial fluid into a system of tubes that delivers it to the
body surface. Fill in the blank(s) with the appropriate word(s).
ANSWER: flame cells
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A patient has an infection caused by S. moniliformis. Which of the following is the preferred antibiotic choice?
a. Penicillin b. Tetracycline c. Streptomycin d. All of the above
Proteins are one of the most ubiquitous, diverse, and functional types of molecule. Which of the following is one of the functions of protein?
a. insulation b. energy c. catalyzing reactions d. clarity
Thyroid hormone is actually _____
a. a signal steroid hormone working alone b. the triiodothyronine and thyroxine molecules working together c. the estrogen and testosterone hormones working together d. TRH and any other hormone working together e. a second messenger or a steroid working alone
When using a cladistic approach to building phylogenies, which of the following is considered most important for classification?
A) shared primitive characters B) analogous primitive characters C) shared derived characters D) the number of homoplasies E) overall phenotypic similarity