Acystocentesis is a a. surgery to open up the urinary bladder. b. puncture into the bladder to remove urine. c. puncture into the chest cavity. d. puncture into the abdominal cavity.

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.