A. because the hormone secreted is parathormone which regulates the calcium in the blood.
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I believe it's D don't take my word for it.
Chlorophyll are the organelles unique to plant cells. The chlorophyll are responsible for producing glucose by using the suns energy and water.
<span>When the landmasses are again collected together in a specific area
The Pangea theory supports the theory of plate tectonics because it is based on the idea that all the present continents were one super-continent. For reasons still unknown, the super-continent got separated and created separate smaller continents. This theory also supports the fact that this movement will continue until the day arrives when all the smaller continents will again merge in a different configuration to create another super-continent. </span>