Use the drop-down menus to match each example to the fossil topic discussed, then to show how the
fossil record gives evidence of evolution.
the fossil record matches the geologic record.
the oldest forms of life were much more simple than the newest forms of life.
a fossil called tiktaalik has been found to be halfway between a fish and the
earliest land animals.

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.

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.