Macromolecules are a set collection of polymers that composes most of the organic substances specifically in the organelles of cells. Thus, these organelles use lipids and proteins in doing cellular activity and keeps them functioning. Observe nitrogen and carbon, these two entities are called elements that are composed of atoms. Elements are the basic composition of a substance. Going back, examples of molecules could be nucleic tides, polypeptides, RNA, protein, lipids and etc. <span>
Protein
Carbohydrates
Lipids
Nucleic acids</span>
Answer:
1200m
Explanation:
Let the depth of sea be x.
Given that the sound has to travel to the bottom of the sea and get reflected back to the ship itself, thus total distance traveled by the sound is 2x.
Time taken to hear an echo t=1.6 s
Therefore, 2x = vt
Hence, we have 2x =1500m/s × 1.6s
=> 2x = 2400
⟹ x = 2400 ÷ 2
= 1200m
Hence, the final answer is 1200m
Answer:
provide a large surface area of moist, selectively permeable membrane.
Explanation:
<span>Which type of molecule that can be found in living things lacks carbon atoms?</span>
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❖ The correct answer choice is B. mechanical energy to electrical energy.
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