Respiration produces carbon dioxide.
In respiration, oxygen is used to break apart food molecules. The energy released by this reaction is stored as the chemical ATP.
<span>Lysosomes contain digestive enzymes.
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C. Amino Acids (Biuret solution)
Answer:
The spike protein has pivotal roles in viral infection and pathogens. S1 recognizes and binds to host receptors, and subsequent confermational changes in S2 facilitate fusion between the viral envelope and the host cell membrane.
Explanation:
As you go to higher altitudes, there are less air molecules pushing down on you (lower pressure). When the pressure of a gas decreases, the temperature also decreases (the reverse is also true – when the gas pressure increases, the temperature increases). Therefore, the air temperature is lower at higher altitudes.