Answer to Question 1ANS: C
Desiccation is the drying out of an organism. Motile animals can move towards water, but sessile
organisms must await the return of water. They trap water within their shells to keep their gills moist.
Some have a protective mucous which prevents water loss. Information can be found in the section
Examples of Marine Communities.
Answer to Question 2ANS: C
The Arctic does not have a deep scattering layer. Perhaps this is due to the abundance of nutrients in
the deep water and the waters above. Information can be found in the section Examples of Marine
Communities.
Mutualisms, such as those that occur among plants and pollinators, generally involve large numbers o
In most ecosystems, sunlight provides the ultimate source of energy to power all biological activity
Increased acidity inhibits the growth of coral and other carbonate shell-building organisms
Wave-Cut Platform and Marine Terrace
A wave whose wavelength is 0.500 m is traveling down a 500-m long wire whose total mass is 25 ...
Immune-to-brain signaling occurs in response to infection, injury, and inflammation that occur in pe