1. In the human body the _______ is a muscular membrane that separates the thora

1. In the human body the _______ is a muscular membrane that separates the thoracic cavity from the abdominal cavity.A. epiglottisB. esophagusC. diaphragmD. bolus2. In kidneys the tiny tubules that produce urine are calledA. nephrons.B. the ureters.C. the renal cortex.D. the renal medulla.3. Which of these plant hormones hastens the ripening of fruit and helps to cause the fall of leaves flowers and fruit?A. CytokininsB. AuxinsC. EthyleneD. Gibberellins4. In the central nervous system the _______ communicates with and coordinates what happens in other parts of the brain.A. cerebrumB. cerebellumC. brain stemD. hypothalamus