Hello!
To answer your question:
The cell membrane's main trait is its selective permeability, which means that it allows some substances to cross it easily, but not others. Small molecules that are nonpolar (have no charge) can cross the membrane easily through diffusion, but ions (charged molecules) and larger molecules typically cannot.
Two examples are:
Charged Ions
An ion is a molecule that is charged because it has lost or gained an electron.
Large Polar Molecules
Large uncharged molecules, such as glucose, also cannot easily permeate the cell membrane.
Hope this helps!
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Answer:
C. 0.120
Explanation:
Assortative mating by phenotype means that individuals with similar phenotypes mate with one another more frequently than would be expected under a random mating pattern. Assortative mating can increase genetic relatedness within a population.
The answer is C. 0.120 because in assortative mating, the allele frequency does not change as it is non-random mating and mates are chosen based on their phenotypes.
Answer:
aquaporins
Explanation:
aquaporins are channel proteins that allow water to flow through a membrane. The rate of osmosis depends on ratio of intracellular to extracellular concentration as well as the presence of aquaporins in the cell membrane
I would say a becuase there wouldnt be enough habitats for animals to reproduce.
