Liverworts and mosses utilize which of the following pigments for photosynthesis?
(a) chlorophylls a and b.
(b) carotenes.
(c) xanthophylls.
(d) all of the above.
(d) all of the above.
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Which of the following would be least likely to cause DNA damage to an individual suffering from xeroderma pigmentosum?
A) direct sunlight B) tanning beds C) incandescent light bulbs D) reflected sunlight
Data from both phylogenies and the fossil record show all of the following EXCEPT:
A. the earliest animals appeared more recently than the earliest land plants. B. microorganisms diverged early in evolutionary history. C. flowering plants diverged more recently than algae. D. primates diverged more recently than tetrapod vertebrates. E. diversity has accumulated over time.
Which of the following is NOT used as evidence that mitochondria and chloroplasts may have arisen according to the endosymbiotic relationship?
a. They have their own membranes and are the same size as bacteria. b. They possess their own type of DNA different from that found in the nucleus. c. They can live an independent existence when isolated from a cell. d. They possess their own ribosomes.
In what ways are we finding that the gut microbiota affects our health?
What will be an ideal response?