Community structure is a result of which of the following?
a. atypical interactions
b. factorial interactions
c. positive interactions
d. negative interactions
e. positive and negative interactions
E
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Which statement about diversity in eye development is not correct?
A. Planaria have the simplest eyes, which are basically pit-shaped cells containing photoreceptors. B. Evolution of the spherical lens improved images as animals evolved. C. Both squids and vertebrates have singlelens eyes, but they are very different in their development, anatomy, and physiology. D. The percentage of living animals possessing true eyes that can produce an image is small. E. Compound eyes consist of hundreds of small lenses arranged on a convex surface.
Adaptations for deep diving in cetaceans include all the following except:
a. expelling air from the lungs. b. large lungs with large number of air sacs. c. rib cage that can collapse. d. sonar for detecting the depth. e. high red blood cell count
In the process of cell differentiation,
a. some daughter cells usually receive varying assortments of genes. b. different genetic instructions begin to operate in different groups of cells. c. cells become specialized as a result of meiosis. d. daughter cells acquire different characteristics as a result of mutations that have occurred. e. all of these
A diagnostic indicator of bacterial meningitis is (clear/milky/dark) cerebrospinal fluid (CSF)
What will be an ideal response?