Which of the following would be considered a carbon reservoir? Select all that apply
A. the Atlantic Ocean
B. Redwood National Park
C. the Great Barrier Reef
D. all the organisms on Earth
A,B,C,D
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A scientist identifies a cell line derived from muscle with reduced expression of several muscle-specific proteins including ?-actin and myosin
Further investigation shows that while mRNA specific to these proteins is transcribed and polyadenylated at normal rates, the half-life of the mRNAs is significantly lower. What would be a likely explanation? A. There is a mutation in RNA polymerase II. B. There is an increase in RNA-editing terminal uridylyltransferase (TUTase) activity. C. There is amutation in poly(A) binding protein (PABP). D. There is amutation in polyadenylate polymerase (PAP). E.There is an increase in number of processing bodies.
What single species is the largest fish catch in the world?
a. Salmon b. Shellfish c. Tuna d. Anchovies
Cytoplasmic membranes of ________ are composed of unbranched phospholipids
A) bacteria B) eukaryotes C) archaea D) prokaryotes E) bacteria and eukaryotes
The formation of new species over many generations is an example of:
A) gene pools. B) macroevolution. C) allelic variants. D) microevolution.