In the ocean, organic matter sinks from the surface to great depths as ________.
A. particulate debris
B. marine snow
C. photosynthetic potential
D. None of the choices are correct.
Answer: B
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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.
What was the super continent called that
included the landmasses that are currently found in the southern hemisphere?
a. Antarctica b. Pangaea c. Eurasia d. Caprica e. Gondwana
Which of the following terms best describes the first primitive eukaryotes?
A) multicellular B) single-celled C) photosynthetic D) specialized
The actual niche the organism is able to occupy in the presence of competitors is called its
A. realized niche. B. fundamental niche. C. interference niche. D. exploitative niche. E. intraspecific niche.