Jennifer received a gamma globulin shot after being exposed to hepatitis. The gamma globulins served what function?
A. osmoregulatory molecules
B. transport molecules for glucose
C. blood clotting agents
D. transport molecules for cholesterol and iron
E. antibodies
Answer: E
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Movement of water results in movement of other nutrients. What element or elements have soluble forms that flowing water can carry from place to place?
a. carbon only b. nitrogen only c. phosphorus only d. carbon and nitrogen only e. carbon, nitrogen, and phosphorus
Which is NOT necessary for sympatric speciation?
a. organisms living together in the same location b. a common home range c. geographic barriers d. existing interbreeding population e. reproductively mature individuals
Which of the following groups of biomes is listed in order of least to greatest in terms of species diversity?
A. rain Forest, savannah, taiga B. savannah, taiga, rain forest C. taiga, rain forest, savannah D. savannah, rain forest, taiga E. taiga, savannah, rain forest
In the genetic code, when the first two nucleotides of a triplet are identical and the third letter is U or C, the codon always codes for the same amino acid
Indicate whether the statement is true or false