The portion of the Moon's surface that cannot be directly observed from Earth
Answer:
B.
Explanation:
Because a Longitudinal wave is a wave vibrating in the direction of propagation.
Answer:
glucose transport in the lung and its role in lliquid movement
Because Thomson's cathode ray tube experiments led to a very important scientific discovery, the electron.
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
