Most organisms in the intertidal zone of sandy shores burrow into the sand
Indicate whether the statement is true or false
TRUE
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The dominant primary producers in tropical open ocean areas are:
a. large net phytoplankton. b. small nanoplankton. c. diatoms. d. algae. e. seaweeds.
The organisms that occupy the first trophic level near hydrothermal vents are:
a. detritivores b. chemoautotrophic bacteria c. decomposers d. photosynthetic bacteria e. photosynthetic algae
A utilitarian approach to a bioethical issue would ________
A) focus on absolute principles of "right" or "wrong" B) emphasize intentions, not outcomes of the decision C) be designed to produce the greatest positive effect for the greatest number of people D) always ensure that all actions are favorable for all parties E) never allow the end result of a decision to justify the means
Recent scientific studies of the impact of microbiota on the amount of fat versus lean body mass (i.e., body composition) are described in your text. How do those studies illustrate the importance of microbiota communities in our bodies?
A) If transferred to lean humans, intestinal microbiota of obese humans will cause obesity. B) If transferred to obese humans, intestinal microbiota in lean humans will cause exaggerated obesity. C) The studies suggest that mice are an unreliable model organism to use for studies of human intestinal microbiota and obesity. D) The studies suggest that intestinal microbiota may be involved in regulating our digestive processes.