answer:
it took 17,000 years for CO2 to go from 200 to 300 ppm.
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I've looked us up ever since you posted it the only thing I can come up with is letter A because it talks a lot about Mountain chains that talks a lot about the ocean floor and the Hawaiian stuff so try a
Answer:
The correct answer is - tight junctions.
Explanation:
Tight junctions are one of the cell-cell junctions that make a barrier to the passage of material which is a present in epithelia. This barrier is impermeable to most of the materials with soluble molecules. This barrier is made up of the occludin and claudin proteins.
Tight epithelia have tight junctions and examples of such junctions are the distal convoluted tubule or DCT, and the collecting duct of the nephron in the kidney.
Thus, the correct answer is - tight junctions.
6÷0........ There is no answer to that really 0 is nothing in numbers so I guess it would just stay 6. Know if it was 0÷6 it would be 0 be cause anything divide by zero will always equal 0
The coelacanth is another lobe-finned fish that is a living fossil. It is thought to have evolved into roughly its current form about 408 million years ago, during the early Devonian, and has not essentially evolved further from its ancient form.
