Which of the following is not a true statement of the lungs?

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

What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?