Protection, regulation, and sensation are functions of the skin.
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<span>The ability of water to hold more heat than land keeps the temperature on earth moderate
If the oceans didn't hold large amounts of heat, then the Earth would probably overheat which would cause many problems for all life forms.</span>
The correct answer is; "Assembling molecules in either hydroxyl or carboxyl functional groups"
Polymers are formed from monomers either by condensation or by addition of monomers.
A polymer is formed by the joining of one or more monomers. This can happen in either of the following ways;
Condensation polymerization involves the loss of a small molecule. When the molecule that is lost is water, we can call it dehydration. Loss of molecules does not occur in addition polymerization.
The two monomer molecules that join to yield the polymer by dehydration must have H and OH moieties in suitable positions for dehydration to occur. A typical example is assembling molecules in either hydroxyl or carboxyl functional groups.
For more about condensation polymerization, see
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a. Transpiration
This process is responsible for loss of water from aerial parts of plants.
b. Photosynthesis
This process is responsible for use of oxygen, water and sunlight to prepare food (glucose).
c. Cellular respiration
This process is involved in breakdown of glucose with help of oxygen, and the end products are CO₂ and energy.
d. Evaporation
It is a simple process related to conversion of water from liquid phase to vapours.
Conclusion
Thus it is concluded from above explanation that cellular respiration is responsible for returning carbon into atmosphere.