The most successful way to achieve healthy weight loss is ________
A) a severe restriction of calories
B) gradually changing eating habits
C) using a diet supplement to enhance metabolism
D) eating more meat
B
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Elongation of the microtubule occurs by the
A) addition of tubulin subunits to each end. B) addition of tubulin subunits to the (+) end. C) addition of the tubulin subunits to the (+) end but removal from the (-) end. D) addition of G-actin subunits to the (+) end. E) deletion of G-actin subunits from the (+) end.
Toll-like receptors (TLRs) bind molecules on pathogens. Why is this helpful to the immune response?
A. It provides a highly specific response to very small and highly unique areas on an individual pathogenic microbe, providing the most specific and selective response possible. B. It provides a general response to broad categories of molecules/cells that should NOT be in our system, as we don't have these molecules on our own cells. C. These secreted molecules help bind pathogens and then direct them to receptors on the immune system cells that are best capable of eliminating them from our systems. TLRs are delivery mechanisms for the immune responses. D. TLRs are capable of directly lysing (destroying) the microbes, helping our immune responses by eliminating pathogens.
Members of this lineage of Cnidarians exist primarily as cube-shaped medusae. They are active
swimmers, and they produce one of the deadliest toxins made by animals.
a. Hydrozoa b. Scyphozoa c. Trematoda d. Cubozoa e. Anthozoa
Which of the following is NOT true regarding
coenzymes?
a. they are cofactors. b. ATP is an example of a coenzyme. c. NaCl is an example of a coenzyme. d. They are often modified in chemical reactions. e. They may carry electrons