Which of the following is an example of evolution that can be observed and studied?
A. Weeds within a farm develop resistance to select herbicides.
B. HIV can become resistant to various drug treatments.
C. A population of bacteria gain resistance to a specific antibiotic.
D. All are examples of evolution that can be observed and studied.
Answer: D
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The selection and differentiation of B cells during clonal selection is an example of:
A. mitosis. B. meiosis. C. binary fission. D. cytokinesis.
Making a protein from mRNA is known as ____
a. translation b. transcription c. polymerase d. replication e. promoter
A hormone that causes cell division and is found in coconut milk and in dividing root tissue is
A. ethylene. B. cytokinin. C. gibberellin. D. abscisic acid. E. auxin.
Which of the following immune system cells produce histamine?
A) T cells B) Macrophages C) Mast cells D) Neutrophils E) B cells