They decrease because the zebra mussel were taking their resources. Leaving them nothing to eat.
The question is incomplete as it does not have the options which are:
A. bioremediation
B. mutualism
C. quorum sensing
D. quorum settling
E. mass-settling
Answer:
C. quorum sensing
Explanation:
Quorum sensing is the gene regulation mechanism used by the bacteria to communicate with the other bacteria. The quorum sensing process depends on the number of bacterial cells or the density of the cells.
When the bacterial number increase in number then the bacterial cells send the signal to the nearby cells and and regulates the expression of the gene. In the given question, the same chemical signal process depends on the density of the cell and thus quorum sensing is correct.
Answer:
Low calcium levels in the <em><u>blood</u></em>
Explanation:
In primary hyperparathyroidism, one or more of the parathyroid glands is overactive. As a result, the gland makes too much parathyroid hormone (PTH). Too much PTH causes calcium levels in your blood to rise too high, which can lead to health problems such as bone thinning and kidney stones. <em> </em><em>this</em><em> </em><em>w</em><em>i</em><em>l</em><em>l</em><em> </em><em>h</em><em>a</em><em>p</em><em>p</em><em>e</em><em>n</em><em> </em><em>i</em><em>f</em><em> </em><em>p</em><em>a</em><em>r</em><em>a</em><em>t</em><em>h</em><em>y</em><em>r</em><em>o</em><em>i</em><em>d</em><em> </em><em>h</em><em>o</em><em>r</em><em>m</em><em>o</em><em>n</em><em>e</em><em>s</em><em> </em><em>g</em><em>o</em><em>t</em><em> </em><em>h</em><em>i</em><em>g</em><em>h</em><em> </em><em>i</em><em>n</em><em> </em><em>h</em><em>u</em><em>m</em><em>a</em><em>n</em><em> </em><em>b</em><em>o</em><em>d</em><em>y</em><em>.</em><em>.</em>
Hello
The pH range of tolerance for humans is well defined and very small for a number of reasons.
First, we must understand that all biological reactions in our body are carried out by biological catalysts called enzymes. These enzymes operate under specific pH and and temperature conditions. Deviation from these conditions will result in inefficiency of the enzymes' functions. This may be observed macroscopic-ally as poor digestion among other things.
Next, an equilibrium is necessary for the movement of CO2 in red blood cells. CO2 is kept in equilibrium in the form of carbonic acid. This equilibrium may be disturbed by the change in pH; resulting in a difficulty to breathe.
Other effects such as fatigue, headaches and nausea may also be observed as the blood circulates throughout your body and its functions will be impaired by the changed pH.
