Hey there Sleepope9174,
An action potential is caused by an influx of which of these ions into the cell?
Answer:
Sodium
Hope this helps :D And it would be a great help if you would kindly mark my answer as the brainliest :D Thx ♥
<em>~Danielle♥</em>
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Law of Horizontality in Sediments. ... The Law of Original Horizontality was first proposed by Danish geological pioneer Nicholas Steno in the 17th century. The law states that layers of sediment were originally deposited horizontally under the action of gravity.
Answer:
The answer is option A which is Amino acids
There is only one structure feasible for a tetrahedral molecule with such a formula, under the supposition that A is in the center of the tetrahedredon. In this case X and Y are in the vertices of the tetrahedron.
If you draw several figures changing the position of the X's and the Y around the center (A), you will see that all are equivalent.
This is the case of the product CH3Cl, named chloromethane, which, for the same reason given above, does not have isomers.
