The natural flow of rivers can be affected by several factors, such as building dams to provide drinking water, pumping of groundwater, climate change, and building of lands that change how natural water runs into surfaces and into rivers. All of these also disrupt the balance of ecosystem in the area.
The answer is graded potential<span>. Its made of various action potentials that depolarise the neuron incrementaly, in short interspersed intervals that do not give time for the neurons to return to resting potential. Therefore, the actions potentials, of varying sizes, grade up in sum and when they cumulatively reach the threshold level, they invoke an impulse in the nerve</span>
A frame-shift mutation would occur. This is because a
deletion will cause a change in codon sequence from the point of mutation to
the end of the mRNA. If the mutation is
closer to the start of the mRNA, the larger the effect of the mutation on the
translated protein.
Violet and blue have the high frequencies (thus energy) of visible light. Red will be the least energy but lowest energy. And remember, chlorophyll is green because it reflects green into our eyes. Green is therefore not absorbed, so not used for photosynthesis.
The small intestines have microvilli in the lining which help to increase the surface area of the small intestines and help to absorb nutrients.
