The cardiovascular and immune
Answer:
share a common ancestor
Explanation:
<em>The similarity in their embryos and embryonic development suggests that reptiles, birds, and mammals share the same ancestor.</em>
Similarity in the structure and development of embryo is one of the evidences that is been used by scientists to support the theory of evolution of species. According to the theory of organic evolution, all organisms are on earth as a result of descent with modifications from common ancestors.
<u>Reptiles, birds, and mammals are all vertebrates. They share some basic characteristics and are thought to have shared a common ancestor before each group took different adaptive channels leading to their differences as they currently exist.</u>
The priority action for Darla to take is to apply pressure through the vaginal canal on the presenting parts. In which by these technique applying pressure over the vaginal canal on the presenting parts will help relieve pressure on the umbilical cord. In addition, umbilical cord prolapse happens when the umbilical cord moves toward out of the uterus with or before the offering part of the fetus. It is a comparatively infrequent circumstance and happens in less than 1% of the prenatal period.
Answer:the answer is B hope this help
Explanation: