What is needed for living matter to function? a. Oxygen b. ...

[clmills979]

What is needed for living matter to function?
  a. Oxygen
  b. Proteins
  c. Energy
  d. Sugars

Question 2

Why is iron not abundant in the ocean?
  a. It is trapped in the Earth's crust.
  b. It is held in sediments.
  c. It is nearly insoluble in oxygenated water.
  d. It is not very reactive.

[matt]

Answer to Question 1

ANS: C
Energy cannot be created by living organisms. They can transform it into a usable source of energy.
For example, plants convert light energy into chemical energy. Information can be found in the section
The Flow of Energy through Living Things Allows Them to Maintain Complex Organization.

Answer to Question 2

ANS: C
The little dissolved iron is highly reactive, it sticks to falling particles in the water, and then sinks to
the bottom. Information can be found in the section Elements Cycle between Living Organisms and
Their Surroundings

[clmills979]

Great answer, keep it coming

[triiciiaa]

Excellent