True of False: Escherichia coli is positive for motility.
What will be an ideal response?
False
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The parts of a flower most likely to have distinctive colors, patterning, and shapes for attracting
pollinators are the
a. petals. b. carpels. c. stamens. d. receptacles. e. sepals.
A newly evolved species may take over an ecological role or ecological niche that is already occupied
if the new species has:a. the ability to alter or change the environmental parameters. b. features that make it competitively superior to the original occupant of that niche. c. the ability to evolve through natural selection, whereas the original occupant cannot continue to evolve. d. the ability to grow to a larger size, thus providing it with a selective advantage. e. fitness that is almost as high as the fitness of the original species.
NAD is a(n)
A. enzyme. B. electron carrier. C. product of photosynthesis. D. oxygen carrier.
In older woody plants, the epidermis of the stem is replaced by
A. collenchyma. B. tracheids. C. periderm. D. trichomes.