Chart the path of urine from the blood to the outside of the body. What will be an ideal response?
Urine (including its precursor compounds) would follow this path: Bowman’s capsule, proximal
convoluted tubule, loop of Henle, distal convoluted tubule, collecting duct, ureter, bladder, and finally
out of the body via the urethra.
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Which connective tissue type has no blood vessels within it?
a. bone b. cartilage c. dense connective tissue d. loose connective tissue e. adipose
If rice could be bioengineered to contain more carotene, which is a precursor to vitamin A, what worldwide health problem could be improved?
a. AIDS b. malaria c. rickets d. goiter e. blindness
Nitrification
a. converts ammonium into nitrates. b. reduces nitrates to nitrites. c. converts nitrogenous compounds into free nitrogen. d. converts atmospheric nitrogen to ammonia. e. reduces ammonia to ammonium
What is not a method used by ectotherms to affect body temperature?
A. Countercurrent heat exchange B. Shivering C. Basking in the sun D. Increasing metabolic rate E. Dilation or contraction of blood vessels in skin