Answer: The correct option is D
Explanation: The transport of glucose through the cell membrane is carried out by two types of proteins: transporters of glucose coupled to sodium, and proteins facilitating the transport of glucose. In both cases, the method of transport is the facilitated diffusion through protein channels.
In medusae, mesoglea comprises the bulk of the animal and forms a resilient skeleton. In polyps, the water-filled coelenteron acts as a hydrostatic skeleton, which, in concert with the mesoglea, maintains the form of these animals. Muscles in cnidarians are extensions of the bases of ectodermal and endodermal cells.
It would be the closest as the massive glaciers in that area melted and retreated. Freed from the enormous weight of ice, the land level gradually rose over several thousand years and the waters simply drained off into the ocean, leaving what is now Lake Champlain and a few river valleys.
<span>B. less energy than gamma rays but more than ultraviolet
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