Why is carbon so abundant in living things when oxygen is the most abundant element on earth?

carbon atoms can bond with one another to make chains and cyclic structures whereas oxygen atoms cannot form chains or cyclic structures.
carbon atoms are found in compounds that are solids at room temperature whereas oxygen atoms are found in compounds that form gases
carbon atoms have lower mass than oxygen atoms, which keeps the masses of living things within desirable limits.
carbon atoms are more stable than oxygen atoms, which allows living things to have more stable compositions.

Which sentence best expresses the differing opinions of these two book reviews?

1. environmental factors, such as ph and temperature, can affect the function of an enzyme. a. true b. false 2. which of the following is an organic molecules (ex. vitamins) that an enzyme? a. coenzyme b. product c. active site d. substrate 3. how do enzymes effect the speed of a chemical reaction? a. they speed it up b. they slow it down c. they have no effect on the speed of a reaction 4. during a chemical reaction, an enzyme is used up so that it can only be used one time. a. true b. false 5. which of the following results from a chemical reaction that is catalyzed by an enzymes? a. active site b. product c. substrate d. coenzyme

What is the correct term for an area of rotating currents in an ocean? when ocean currents combine, they create an area of rotating currents called an