There are four classes of macromolecules (polysaccharides or carbohydrates, triglycerides or lipids, polypeptides or proteins, and nucleic acids such as DNA & RNA). Carbohydrates and lipids are made of only carbon, hydrogen, and oxygen (CHO). Proteins are made of carbon, hydrogen, oxygen, and nitrogen (CHON).
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I believe that B is the answer. There are actually multiple disadvantages to using solar energy including the lack of reliablility, the amount of resources needing to be used to create solar panels, and even the lack of energy when there is no sun.
The reduced dependence on fossil fuels is an advantage and the same is involved when it comes to choice C. It is also important for it to become a renewable source so there isn't a lack of needed resources.
Answer:
Forests
Explanation:
Without forests the carrying capacity of an ecosystem would decrease because there would be a smaller number of habitats for wildlife.
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Decomposers are organisms that break down dead material in an ecosystem.
Answer:
(:
Explanation:
Different cells in a multicellular organism may express very different sets of genes, even though they contain the same DNA.
