The location of phytoplankton in the ocean is determined by 

A. temperature.
B. space.
C. salt content.
D. light.


D. light.

Biology & Microbiology

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In the cells of some organisms, mitosis occurs without cytokinesis. This results in _____

A) cells with more than one nucleus B) cells that are unusually small C) cells lacking nuclei D) destruction of chromosomes E) cell cycles lacking an S phase

Biology & Microbiology

Which is the correct order for the application of reagents in the Gram stain?

A. Crystal violet, alcohol/acetone, iodine, safranin B. Iodine, safranin, crystal violet, alcohol/acetone C. Crystal violet, safranin, iodine, alcohol/acetone D. Safranin, crystal violet, alcohol/acetone, iodine E. Crystal violet, iodine, alcohol/acetone, safranin

Biology & Microbiology

Four of the five answers listed below possess a complete digestive system. Select the exception.

a. human b. bird c. earthworm d. planaria

Biology & Microbiology

Considering the history of the Earth, would the water flow and precipitation patterns have been as they

are now? What will be an ideal response?

Biology & Microbiology