Fossils of the earliest tetrapods should ________.
A) show evidence of internal fertilisation
B) show evidence of having produced shelled eggs
C) indicate limited adaptation to life on land
D) feature the earliest indications of the appearance of jaws

Question

Quizplus · Accepted Answer

The earliest tetrapod fossils would indicate limited adaptation to life on land, as they would be the earliest organisms making the transition from water to land. Evidence of internal fertilisation or shelled eggs would likely not appear until later in evolutionary history. While the first tetrapods did eventually develop jaws, this is not a defining characteristic of their earliest fossils.

Fossils of the Earliest Tetrapods Should ________