About 96% of freshwater in the United States is obtained from stream and river.
Freshwater refers to a source of water supply that is not salty. Water could be freshwater or salt water. Salt water is often unfit for many applications unless it is duly processed.
The United States has an abundance of freshwater supply that is used for various purposes such as domestic purposes, irrigation, industry, etc. About 96% of freshwater in the United States is obtained from stream and rives.
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Answer:
The correct answer is Active transport moves substances against the concentration gradient.
Explanation:
The principle difference between active transport and facilitated diffusion is that active transport helps in the movement of various substances in the uphill direction which means against the concentration gradient.
In simple words active transport helps in the movement of substance from the region of low concentration to a region of high concentration.
On the other hand during facilitated diffusion substances move along their concentration gradient which means from the high concentration region to the region of low concentration until the concentration of both sides become same.
Answer:
Hypotheses about the origins of life
Answer:
The answer is Kingdom .
Explanation:
Kingdom is place the highest in the level of classification .
Answer:
<u>c. Sucrose and glucose</u>
Explanation:
The paramecium is a large, single-celled microbes, surrounded by a plasma membrane. Simple diffusion occurs in cells across plasma membranes, as a form of passive transport. In diffusion, solutes move from regions of high concentration to regions of low concentration across the plasma membrane.
Here, the internal environment has higher concentrations of sucrose and glucose, but lower concentrations of fructose, thus the solutes will move along their concentration gradient, to where the concentrations are lower. In order for the fructose molecules to move out of the cell, the molecules have to move against their concentration gradient - a process requiring energy known as active transport.
