Photosynthesis is driven by the ________ light spectrum
A) visible B) ultraviolet C) infrared D) microwave
Answer: A
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An unfortunate deer becomes stuck in quicksand at the edge of a lake and dies. A few months later, it is buried by sediment in a massive landslide, but by this time, bacteria have fully decomposed its soft tissues. Several million years later, archeologists are digging at the spot where the deer dies and was buried. Would the archeologists be able to find a fossil of the deer? Why or why not?
A. No, because it needed to be fully intact when buried to form a fossil. B. Yes, because its skeleton could have been replaced by minerals to form a fossil. C. No, because bacteria continued to decompose its skeleton after it was buried. D. Yes, because it would have fossilized before it was buried.
A nephron____
a. is a kidney tubule b. replaces the blood c. forms feces
d. connects the kidneys to the bladder e. is the functional unit of the kidney
Which best describes an artery?
A) Arteries carry blood away from the heart. B) Arteries carry oxygenated blood. C) Arteries contain valves. D) Arteries have thinner walls than veins.
Your quadriceps are your
A. thigh muscles. B. upper arm muscles. C. calf muscles. D. shoulder muscles.