How deep is the photic layer usually along the coasts? a. 50 ...

[cmoore54]

How deep is the photic layer usually along the coasts?
  a. 50 meters
  b. 100 meters
  c. 150 meters
  d. 590 meters

Question 2

What biological chemical is important in heredity of traits?
  a. Carbohydrates
  b. Nucleic acids
  c. Lipids
  d. Proteins

[wergv]

Answer to Question 1

ANS: B
Most coastal areas have approximately 100 meters of photic zone. This is due to an abundance of
organisms and dissolved particles. These scatter much of the incoming light. Information can be found
in the section Environmental Factors Influence the Success of Marine Organisms.

Answer to Question 2

ANS: B
Nucleic acids are mostly made from four different elementsoxygen, carbon, nitrogen, and hydrogen.
This once again indicates the unity of all life on Earth. Information can be found in the section Living
Organisms Are Built from a Few Elements.

[cmoore54]

Both answers were spot on, thank you once again

[wergv]

Great! Please up vote