Hey,
I believe this answer is A: The desert plants are likely to be better at retaining water.
Which they do, and they have to cause water is very scarce in the desert unlike the rain forest.
Desert plants likely to be larger is not proven and most plants can vary in size.
Narrower stems may have something to do with it but that goes back to they have to hold more water so this is incorrect.
Brighter flowers doesn't have anything to do with water consumption within a plant so this is incorrect as well.
Hope this helps!
Brainliest is always appreciated if you feel its deserved.
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Answer:
They are the first trophic level in an ecosystem and without them the rest of the organisms in the ecosystem would have no source of energy
Explanation:
The autotrophs are the producers in the ecosystem. They manage to produce food for themselves, and they represent the first trophic level, thus they are the basis of any ecosystem. These organisms are the once that produce the energy, and the organisms in the trophic levels above them use their energy to survive. If the autotrophs are removed from and ecosystem, the ecosystem will collapse, as there will be no source of energy for the organisms in the trophic levels above, thus all of them will die out quickly.
In a resting state, sodium (Na ) is at a higher concentration outside the cell, and potassium (K ) is more concentrated inside the cell. During an action potential, the sodium levels <u>increase </u>inside the cell.
During an action potential, the potassium level inside the cell decreases, and the sodium level inside the cell increases. That is to say, there is an outflow of potassium and an inflow of sodium ions.
Action potential usually occurs when an electrical signal disrupts the balance of Na+ and K+ within a cell membrane, briefly depolarizing the concentrations of each.
Learn more about potassium here: brainly.com/question/21439467
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