As a rule of thumb, in order to improve the reliability and accuracy of an experiment, it is best if the experiment is repeated several times. The increased number of trials ensures that the readings observed have minimal random error.
The answer that fits the blank provided above is STEROIDS. Steroids are fat-soluble signal molecules. This is one of the derivative compounds of cholesterol along with Vitamin D and bile salts. All steroid hormones are considered as a derivative of cholesterol. The answer for this would be option D.
Answer:
because scientist think it will help let us students learn more about the living world
It was during the Mitosis stage or the S-phase (Synthesis) of the Interphase. The cells spend most of their life in Interphase before Mitosis will occur.