Which vestigial structure develops in the embryos of all vertebrates,including humans?

Ammonites are fossil shell remains of

Which one of the following organs has become vestigial in humans due to the consumption of cooked food over many years?

The occurrence of vestigial organs is not explained by:

Age of fossils in the past was generally determined by the radio-carbon method and other methods involving radioactive elements found in the rocks. More precise methods,which were used recently and led to the revision of the evolutionary periods for different groups of organisms,include:

Identify the examples of Convergent Evolution and Divergent Evolution from the following list:
$I -$ Sweet potato (root) and Potato (stem)
$II -$ Forelimbs of Whale,Bat,Cheetah,and Human
$III -$ Thorn of Bougainvillea and Tendril of Cucurbita
$IV -$ Flippers of Penguins and Dolphins
$V -$ Wings of Butterfly and Wings of Bird
$VI -$ Eye of Octopus and Mammals
Select the correct sequence for Convergent Evolution and Divergent Evolution.