An example of a negative estuary is:
a. Delaware Bay.
b. Puget Sound.
c. Laguna Madre.
d. San Francisco Bay.
e. Chesapeake Bay.
C
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Lichens are symbiotic associations of fungi and _____
A) mosses or algae B) cyanobacteria or algae C) green algae or liverworts D) mosses or cyanobacteria E) mosses or sponges
How do epithelial cells obtain their nutrients? a. Direct blood supply from an artery
b. Nutrients are delivered by macrophages. c. Direct blood supply from a vein. d. Diffusion from adjacent cells. e. Osmosis of nutrients from underlying tissue.
What is occurring during the process of translation?
a. the conversion of DNA to mRNA b. the conversion of DNA to tRNA c. the conversion of rRNA to proteins d. the conversion of mRNA to proteins
Which statement about biomass is FALSE?
a. Biomass reduction from one trophic level to the next is approximately 50%. b. Biomass reduction from one trophic level to the next varies widely in nature. c. Biomass reduction can be measured as dry weight. d. Biomass may be measured as live weight. e. Biomass in an ecosystem can be illustrated using a pyramidal-shaped graph.