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.
The development of electronic delivery systems advancements in the music industry has preserved resources and reduced waste.
Option C
<h3><u>Explanation:</u></h3>
Music industry is the industry that deals with the production of new music that are soothing to hear, recording them, spreading them in public and so on. This industry is an age old industry which used to record music in different ways in past. Most of them were not that efficient to capture the individual tunes of the music and moreover they used the resources very inefficiently.
With the advent of modern day electronic delivery systems, the mics came into market, as well as different electronic media like pendrive, CD's, tape recorders, and even internet through which music can be spread among public very easily.
<span>Which statement best describes the role of the cell membrane?<span>a. It stores genetic material.
b. It encloses the cytoplasm.
c. It produces proteins.
d. It breaks down food particles.
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Sex and blood type. An animals blood type will be suitable for its surrounding environment and the sex can be determined by how warm or cold the unborn fetus is
