does blood flow from the lungs circulation to the heart before circulating through the rest of the body

Types of scientific inquiry that biologist engage in that cannot be completely controlled

Which of the following statements about protists are true? a. they are typically found in moist environments. b. they are all unicellular. c. they have a nucleus. d. they are all multicellular.

What is one affect on the australian environment due to the introduction of non-native european rabbits