With each heartbeat, the muscle cells coordinate themselves so that each contraction is forceful enough to circulate blood through the entire body. the beat begins in the node, which sets the tempo of each beat, thus giving it the name of pacemaker. sinoatrial pericardium atrioventricular electrocardiogram semilunar

Which of these best describes wde by replicating the chromosomes c) the cytoplasm is divided between the two new daughter cells d) the nucleus opens to allow the chromosomes to enter the cytoplasm

Which muscle is responsible for inhalation ?

Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.