I think it is D hope I’m right
Two factors infuence the regions photosynthetic productivity which would be the amount of solar radiation and the availability of nutrients because solar radiation is needed as well as nutrients which keeps the plant healthy
hope this helps (:
One reason is for an animal to come along and eat it's fruit, so that it can excrete the seeds somewhere else allowing that type of flower/plant to spread over distances :)
This causes a phenomenon referred
to as valve regurgitation. This reduces the flow of blood in the blood vessels
and causes a reduction in the oxygenation of tissues of the body. This causes homeostatic signaling by the body resulting
in the exertion
of the heart pumping and increased breathing (heavy breathing). This is why
some of the symptoms include shortness of breath,
fatigue,
and light-headedness.
