This is a muscular tube through which food passes, aided by peristaltic contractions, from the pharynx to the stomach.

How was the climate when the ambulocetus was alive

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen

Explain the significance of meiosis in sexual reproduction