What can occur when organisms are exposed to air and sunlight? ...

[Frost2351]

What can occur when organisms are exposed to air and sunlight?
  a. Wave shock
  b. Motility
  c. Desiccation
  d. Succession

Question 2

Where is there no deep scattering layer present?
  a. Temperate oceans
  b. Tropical oceans
  c. Arctic oceans
  d. All oceans have a deep scattering layer

[lkanara2]

Answer to Question 1

ANS: 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 2

ANS: 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.

[Frost2351]

Both answers were spot on, thank you once again

[lkanara2]

Great! Please up vote