A lamprey, a shark, a lizard, and a rabbit share all the followin...

Question

A lamprey, a shark, a lizard, and a rabbit share all the following characteristics except
a. pharyngeal slits in the embryo or adult.
b. vertebrae.
c. hinged jaws.
d. a dorsal, hollow nerve cord.

Accepted Answer

Hello everyone and welcome to today's video. So based on a hypothesis, the hinged jaw fishes had evolved from the blank of their hypothetical ancestors or in order to solve this problem, we're going to have to visualize the transition or the evolution of the jaw of these, these fishes. And as we can see at the beginning, they had these skeletal rods that moved into it and involved, and then eventually they created this hinge jaw that we are seeing here, and we can see this by the colors assigned to each of them. Because of this, the hinge of fishes is hypothesized to have evolved from the skeletal rods of their ancestors. I really hope this video helped you and I hope to see you on the next one.

A lamprey, a shark, a lizard, and a rabbit share all the following characteristics except a. pharyngeal slits in the embryo or adult. b. vertebrae. c. hinged jaws. d. a dorsal, hollow nerve cord.

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