Ineed this really !
a scientist discovers a new species and compares its embryos to the embryos of several different mammals. the new organism doesn’t have pharyngeal arches, or a, notochord, and it doesn’t go through the carnegie stages of development. from this information, what can the scientist conclude?

a. it’s not an animal.

b. it’s not a mammal, but it’s a different type of vertebrae.

c. it’s a vertebrae because it’s a mammal.

d. it’s not a mammal or a vertebrae.

What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.