Carbon enters the atmosphere through all of the following sources EXCEPT ____
a. cell respiration
b. volcanic eruptions
c. burning of fossil fuels
d. wind erosion
e. fire
ANSWER: d
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What is a simple way for determining if an annelid is a polychaete or a clitellate?
A. The number of segments B. Possession of a closed circulatory system C. The amount of chaetae (setae) D. The layout of the digestive system Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about annelids? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
A patient arrives at the hospital by ambulance, presenting symptoms of confusion, partial paralysis, and slurred speech. The attending physician quickly diagnoses a stroke as the most likely cause and injects the patient with tissue plasminogen activator (tPA) to dissolve the clots, but the patient’s symptoms continue to deteriorate over the next few minutes. What is the most likely explanation for the patient’s failure to respond to treatment?
a. The patient has chronic epilepsy and has been misdiagnosed. b. Multiple clots caused the stroke, and another dose of tPA is required. c. The stroke occurred due to a burst blood vessel instead of a clot. d. A stroke cannot be treated by tPA once paralysis has occurred.
Neither adult nor larva is segmented. Tunicates go through which type of development?
A. direct B. asexual C. hermaphroditic D. amniotic E. indirect
Familial hypercholesterolemia
A. may be treated by ex vivo gene therapy. B. is a condition that develops when liver cells lack a receptor protein for removing cholesterol from the blood. C. is characterized by high blood levels of cholesterol. D. All of the answer choices are true. E. Only two of the answer choices are true.