Placozoans:
A. are remarkable for their tissue complexity
and organ development.
B. can reproduce sexually or asexually.
C. bear little to no resemblance to animals
such as cnidarians on the basis of genetic
analysis.
B
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What will be an ideal response?
Neisseria gonorrhoeae may sometimes cause
A. ophthalmia neonatorum. B. salpingitis. C. lymphogranuloma venereum. D. nongonococcal urethritis. E. salpingitis and ophthalmia neonatorum.
What happens to the salinity of the ocean in areas where freezing occurs? a. Salinity is maintained at a normal level
b. Salinity decreases. c. Salinity creates a mixed layer with the ice. d. Salinity increases.
The spontaneous generation of living things from nonliving things was thought to be common many years ago. Louis Pasteur used specially constructed flasks with a long S-shaped neck to prove that
A. spontaneous generation of organisms occurred in broth in the flasks. B. oxygen was required to have living things present in the broth. C. microorganisms had to enter the flask to get the broth to "spoil." D. the broth "spoiled" even if organisms were not present.