Answer:
it controls the heartbeat and movement of food
!
Explanation:
Answer:
Nitrogen
Explanation:element found in all organic compounds carbon
element found in proteins but not carbohydrates or lipids nitrogen
three parts of a nucleotide phosphate, sugar, base
element found in nucleic acids, but not proteins, carbs, or lipids phosphorus
Answer:
C) Student 2 has an explanation that is supported because eukaryotic cells have a nucleus, which is lacking completely in cell III.
Explanation:
Answer: very small amounts are easier to express as ppm.
Explanation: 1 ppm = 0.0001 %