In an apple seedling, what is the function of a lateral meristem?
a. increasing the diameter of stems
b. protecting new leaves and shoots
c. discouraging predatory animals
d. ensuring regular seed production
a. increasing the diameter of stems
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Extensive growth of the streptococci in a thick bacterial layer on acidic glycoproteins on the teeth is called
A) dental plaque. B) dental caries. C) dental biofilm. D) periodontitis.
During active transport through the sodium-potassium pump, ATP hydrolysis provides the energy to pump three sodium ions into the cell for every two potassium ions pumped out of the cell.
a. true b. false
Sexually transmitted diseases are a major cause of infertility. Knowing this, what method of birth control would you think is best for reducing infertility rates?
A. diaphragm B. condoms C. IUDs D. oral contraceptives E. vasectomy
Transgenic bacteria are bacteria
A) found in the DNA of other organisms. B) that have hybridized with other species of bacteria. C) that produce genes used in recombinant DNA technology. D) that have a sequence of DNA from another organism inserted into them. E) that only have trans-DNA.