An uncharged atom of nitrogen has ________ protons and _________ electrons.
Fill in the blank(s) with the appropriate word(s).
Answer: 7 / 7
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DNA is favored as the storage molecule of genetic information because it ____ than RNA
a. has more nucleotides b. has greater chemical stability c. can assemble into longer coding sequences d. has more nucleotides and greater chemical stability e. has greater chemical stability and can assemble into longer coding sequences
You are a resource manager of a large eutrophic lake. After stopping the source of nutrients from entering the lake, what further steps could you do to improve the water quality?
a. introduce phytoplankton-consuming fish. b. introduce freshwater sponges into the lake. c. introduce aquatic plants into the habitat. d. introduce carnivorous fish into the lake.
The ability to mount an efficient secondary antibody response depends on
A. All of the choices are correct B. Memory T and B cells C. Cross-linking of IgM antibodies D. High concentrations of IgA antibody E. Class switching to IgD production
Which of the following characteristics are shared by animals and fungi? Check all that apply.
A. secrete digestive enzymes B. absorptive nutrition C. derived from protists D. autotrophic E. cell walls