Which of the following statements about the centrosomes are true

For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a. control b. hypothesis c. procedure d. system

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?