Answer:
Uploaded an image with the answers
Explanation:
<u>Answer</u>:
The main elements that are present in proteins, carbohydrates, lipids, and nucleic acids are
B)carbon and hydrogen
C) oxygen and nitrogen
<u>Explanation</u>:
In common they have hydrogen, carbon, oxygen as well as nitrogen. Nitrogen are the reduced form so as the major component among the three others. It helps in the formation of the proteins and the polypeptides, DNA and RNA also in the formation of polymers of the amino sugars. Proteins are made from the carbon, hydrogen, oxygen, as well as nitrogen. The nucleic acid like DNA and RNA has carbon, hydrogen, oxygen, nitrogen and the phosphorus in it. The body also requires small amount of calcium, potassium and sulphur for the proper functioning of the muscles as well as the nerves.
? there is no video. Please be more specific
I suggest taking this post down before a moderator does.
They are pretty strict. :)
This is because the transfer of energy from one trophic level to another is very inefficient. This is why the energy illustration of an ecosystem is more or less a pyramid structure. Only approximately 10% of biomass energy consumed by one level become biomass in the upper trophic level. The rest is lost as heat energy. This means the higher up the trophic level the fewer the organisms will be.
