Following gastrulation, the next major development in the embryo is neurulation, which occurs during weeks three and four after fertilization. This is a process in which the embryo develops structures that will eventually become the nervous system
Birds, Salamanders and Sharks are all Endotherms and can manipulate their body temperatures.
Protein synthesis as well as DNA transcription
She is clearly denlmostrating xenophobia or discrimination from where you are from