Answer:
This cells are call the pinacocytes
Explanation:
The dermal layer of a sponges, is the outer layer of ectodermal origin. It has coating cells, the pinacocytes, that line the outer wall of the pinacoderm. They are flat and thin and can cover some internal parts. They are T-shaped and their cell bodies extend inside the mesophyll. They are contractile cells that help regulate the surface area of the sponge.
During the War of 1812 (1812–1814), the British blockade of U.S. ports almost completely stifled export trade. The blockade followed a general worsening of American commerce, which had declined by almost one-fifth between 1807 and 1809.
The answer is B. Hope this helped! <3
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