The respiratory system takes oxygen into the human body and expels carbon dioxide. which body system interacts with the respiratory system to transport these gases to and from the various parts of the body?
a. the nervous system
b. the digestive system
c. the urinary system
d. the circulatory system

Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘