What does the evolution of the heart from a two-chambered to a three-chambered and finally a four-chambered structure demonstrate?

Select the incorrect statement.

Flippers of penguins and dolphins are an example of . . . . . . .

What are potato and sweet potato?

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.

Which type of evidence suggests that humans are more closely related to chimpanzees than to other hominoid apes?