Which of the following is required for photons to be used as a source of energy?
a. They must be particles.
b. They must be energized.
c. They must be absorbed by a molecule.
d. They must be reflected by a molecule.
Answer: c. They must be absorbed by a molecule.
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All of the following statements about mycoplasmas are true EXCEPT
a. they possess a nucleoid. b. they lack a cell wall. c. they are Bacteria. d. they are Archaea. e. they are resistant to penicillin.
Four of the five choices listed below result from
fertilization. Select the exception. a. fruit b. seed c. embryo d. pollen e. endosperm
How can you establish that, in a newly described species of plant, a particular phenotype is due to a chloroplast rather than a nuclear gene?
What will be an ideal response?
On October 29, Barbara volunteered for a study group for her microbiology class. On October 30, she felt fine. On November 1, Barbara developed a "scratchy throat" when she swallowed. On November 2, Barbara had a headache, runny nose, and watery eyes. She was fully recovered on November 7. During which time was Barbara in the prodromal period?
A) October 30 B) November 1 C) November 2 D) November 7