<h2>Answer:</h2><h2><em>About Two Thousand</em></h2><h2><em>About Twenty-Five Thousand</em></h2><h2><em>1780</em></h2><h2><em>About a Third Of</em></h2><h2>Explanation: </h2><h2><em>Thank Me Later</em></h2>
Hormones and water balance are another two conditions which are maintained by cells.
Answer:
Gas exchange during respiration occurs primarily through diffusion. Gas molecules move from a region of high concentration to a region of low concentration. Blood that is low in oxygen concentration and high in carbon dioxide concentration undergoes gas exchange with air in the lungs.
Explanation:
Haven’t taken bio in years but im thinking it’s A
Answer:
C. break hydrogen bonds between complementary nucleotides; the job of DNA helicases is to separate the two strands of a DNA molecule to allow DNA pol III to do its job in synthesizing the complementary DNA strands.