What is aerobic respiration? a
Air intake in Respiration.
b
Photosynthesis in animals
c
Respiration in absence of Oxygen.
d
Respiration in presence of Oxygen

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity

Vessels draining the myocardium of the heart, open primarily ,into which chamber?

What happens to the amount of waste in the pond as the ecosystem ages?