Ribose has five carbon atoms, of which three are asymmetric. What is the maximum number of stereoisomers that may exist for ribose?

A) 2
B) 4
C) 6
D) 8
E) 10


D) 8

Biology & Microbiology

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You are studying the island biogeography of birds in the Caribbean islands and find a species-area relationship with a constant, c = 8.1, and an exponent, x = 0.15. Recall that the species-area relationship is defined as S = cAx

How many bird species would you expect to find on an island of 240mi2? A. 3 species B. 18 species C. 21 species D. 50,000 species

Biology & Microbiology

A 7-year-old girl was at summer camp and dove into the lake many times. She complained that water went up her nose a few times. Several days later she is unresponsive and comatose and rushed to the hospital. A cerebrospinal fluid (CSF) specimen is drawn, and several motile amebae are observed. She is most likely suffering from an infection with which of the following pa-rasites?

a. Plasmodium vivax b. Naegleria fowleri c. Ascaris lumbricoides d. Hymenolepis nana

Biology & Microbiology

Of all the hundreds of varieties of dogs, all belong to the same ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Which of the following is responsible for the storage of extra bile?

Select one: a. small intestine b. liver c. stomach d. gallbladder e. pancreas

Biology & Microbiology