Which statement describes suspension feeders?
a. They may inject anticoagulants into a host to inhibit blood from clotting.
b. They may have long tongues to effectively extract nectar from plants.
c. They may have comblike plates called baleen.
d. They may have piercing mouth parts to obtain blood from a host.
Answer: c. They may have comblike plates called baleen.
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Fluid waves within the cochlea cause the movement of the:
A. tympanic membrane. B. basilar membrane. C. tectorial membrane. D. basilar membrane and tectorial membrane.
The figures above represent three hypothetical populations; each circle is an organism. Write the letter of the pattern that you would expect to find. Food is most abundant near waterholes in the desert
A. A B. B C. C
Phosphorylation of ________ is required for chromosome condensation.
A) condensin B) cyclin C) DNA gyrase D) topoisomerase II E) both choices A and B
Staphlococcus aureus is a bacterium that
causes wound infections. Many strains of S. aureus now exist that have evolved resistance to the potent antibiotic, methicillin. This is an example of ____ selection.
a. directional b. stabilizing c. disruptive d. frequent e. more than one of these types of