Over generations in a population, traits seen in individuals with higher fitness values will
A. become less prevalent in the population.
B. become more prevalent in the population.
C. stay at the same frequency in the population.
D. decrease the population's mean fitness.
B. become more prevalent in the population.
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Ernest Rutherford's key experiment on alpha particle bombardment of gold foil was important to the development of
A. detection methods for protons. B. alpha particle emitters. C. gold as an element. D. the modern model for atomic structure. E. the concept that atoms have a homogenous distribution of protons throughout the atom.
The macromolecule containing alternating N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM) chains cross-linked by short peptide fragments is ________.
A. teichoic acid B. mycolic acid C. lysozyme D. lipopolysaccharide E. peptidoglycan
What is the role of memory cells?
A) remain in the lymphoid tissue to rapidly proliferate and differentiate upon subsequent exposure to the same pathogen B) suppress the cellular response once the infection has passed C) circulate in the body at elevated levels to maintain an active attack against any possible pathogen D) prevent an immune response against members of the normal microbiota E) provide immune protection specifically for central nervous system
All of the following are true about auxin except:
A. auxin is responsible for apical dominance B. auxin aids in the differentiation of vascular tissues C. auxin is responsible for starting the Calvin-Benson Cycle D. auxin can trigger cell elongation E. all of the above are true