Which statement correctly describes the circulatory system?

a) blood leaves the heart via the atrium.
b) blood travels away from the heart in the pulmonary vein.
c) blood travels back to the heart in the aorta.
d) blood travels away from the heart via the pulmonary trunk.

Which experiment would most likely contain experimental bias ?

Asap many people try to eliminate fat from their diets which is one reason it is necessary for humans to eat fat a) fat is the only way to get energy b) every cell in the body must contain fat c)fat stores less energy than polysaccharides d) saturated fats make blood vessels healthier

The information in the diagram best support which hypothesis