What was pangaea? when did it form and when did it break apart it was

Pangaea was a supercontinent. This was a land mass that included all continental masses on Earth, and it was the last one of this type. There were two other supercontinents after it broke apart, but they were not consisted from all land masses. Pangaea formed in the late Paleozoic era, around 335 million years ago, and it existed until the early Mesozoic until it started to break apart around 175 million years ago. After it broke apart, there were two large continents that were short lived, Laurasia on the north, and Gondwanaland on the south, and from the further breaking apart of these two the modern day continents have formed.

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.

this transfer is call conjunction