<h3><u>Answer;</u></h3>
A. The Triassic period of the Mesozoic Era
<h3><u>Explanation;</u></h3>
- <u>Pangaea was a super continent that existed about 300 million years ago, instead of the current seven continents.</u>
- <em><u>During the Triassic period, the first period of the Mesozoic Era the Earth's landmasses had coalesced to form the super continent Pangaea. By the end of this period the super continent began to divide into two; Laurasia in the north and Gondwana in the south, under the influence of plate tectonics. </u></em>
- <em><u>During the Jurassic Period which was the second segment of the Mesozoic Era that followed the Triassic period, the super-continent Pangaea further split apart.</u></em>
Either the Porifera (sponges) or the Ctenophores (comb jellies). The jury is still out on which group branched off the main animal line first.
Adaptation is a response to the environment but long term.
For example:
<span>A wolf has a fur coat as an adaptation to the cold weather, but birds migrating south is a response to cold weather.</span>