Which event occurs in meisos but not mitosis

What is the next step in muscle contraction after the actin changes shape? (apex)

Gene expression is the activation of a gent that results in a question 1 options: protein dna mitochondria

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere