Dr. Smith has determined that John Jones has an accumulation of fluid in the chest cavity. The doctor is surgically puncturing through the space between John's ribs, using an aspirating needle to withdraw the fluid from the chest cavity. This procedure is known as a .A) pleurodesisB) thoracentesisC) thorax punctureD) thoracotomy

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.