Answer:
Sample 4.
Explanation:
Oxygen is very important for life, so this should be present.
Answer:
Proteins is a macromolecule that helps to send signals
Answer:
B
Explanation: Decreasing the temperature will not make the increase rate at which something dissolves quicker it would only make it go slower.
Answer: A) it doesn’t represent the way that some hypotheses might be rejected.
Explanation: Just helped someone answer this question.
Hope this helps ʕ•ᴥ•ʔ