Answer:
An experiment that directly test the hypothesis.
Explanation:
Although there is quite a bit missing from Mary's scientific investigation, the thing that sticks out the most is the fact that Mary is missing an experiment. Mary's hypothesis states that people would fall asleep faster if their room color were to be painted blue. To prove that her hypothesis is true, Mary would need to conduct an experiment to see whether or not she was correct.
Answer: A bond in which electrons are shared.
<span>Allergies are caused by D. reactions to antigens. Antigens are some kinds of toxins that can cause a reaction in your body, and that reaction is usually in the form of an allergy. The other options do not really have much to do with allergies, but rather other forms of diseases and illnesses. </span>
Answer: True. It would cause friction in the resulting polypeptide chain along with the DNA and ACG also ACT.
Explanation: