Question

the animation covered how vestigial traits provide evidence for evolution. which of these examples describe vestigial traits? vestigial boas and pythons have reduced hind limbs that are barely visible externally. cave fish that live in permanent darkness have small eyes that no longer perceive light. humans produce wisdom teeth during late adolescence, although they no longer need them to replace lost teeth. the front limbs of whales are modified into flippers, but they retain the same underlying bones found in other mammalian forelimbs. penguins use their wings to swim rather than to fly. water - dwelling mammals such as whales and manatees have thick bones to enable quick diving. whales have muscles needed to position external ears, but due to streamlining, they no longer have external ears.

Explanation:

Vestigial traits are remnants of organs or structures that had a function in ancestors but are now reduced or non - functional. The given examples that fit this are those where structures have lost their original use.

Answer:

Boas and pythons have reduced hind limbs that are barely visible externally.
Cave fish that live in permanent darkness have small eyes that no longer perceive light.
Humans produce wisdom teeth during late adolescence, although they no longer need them to replace lost teeth.
Whales have muscles needed to position external ears, but due to streamlining, they no longer have external ears.