1) Photosynthesis and cellular respiration play an important role in the cycling of carbon among the
biosphere, atmosphere, hydrosphere, and geosphere.
Provide an explanation for which letter best represents
the role of photosynthesis in the carbon cycle.
A)
E, because CO2 is being used by
photosynthetic algae.
D, because CO2 from animal wastes are
B)
being released back into the atmosphere.
A, because CO2 being produced by plants
C) in photosynthesis is being released into
the atmosphere.
B, because CO2 from the atmosphere is
D) being used in the process of
photosynthesis to produce glucose.

i think the answer is b.

hope it

[content deleted] - user123802726recklesschicken

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.