4 mps increase in 10 seconds = 2 mps increase in 5 seconds = .4meters/2sec
The best answer is nitrogen.<span> After all, it is found in our nucleic acids and proteins. </span>Calcium can be found abundantly in our bones since calcium makes our bones strong. Sulfur can be found in our body but only in low and insignificant amounts. Boron is said to be lethal when taken in great amounts in our body; it can cause diseases and illnesses.
Answer: genus
Explanation:
The answer to the question is genus. The genus is where microevolution occurs or happens. The domain, species, kingdom, family, or population are not the taxonomic category where microevolution occurs. The answer to the question is genus.
Have a nice day!
Answer:
<em>1. A low- pressure weather system can cause a thunderstorm to develop. </em>
<em>2.Thunder is caused by lightning. When a lightning bolt travels from the cloud to the ground it creates a channel. Once the light is gone the air collapses back in and creates a sound wave that we hear as thunder.</em>
<em>3. One condition that is necessary for a thunderstorm include warm air and moisture.</em>
<em>4. The dangers of a blizzard include getting lost in the snow and freezing to death.</em>
<em>5. In my opinion, a hurricane would be the most difficult storm to face because hurricanes can severely impact your life due to their damage. For example,winds can damage houses, trees, and any other property. Even if your home is safe, flooding aftermath can occur. When homes are destroyed, people may have to rebuild homes and towns.</em>
Answer:
The correct answer is ''loss of acetylcholine receptors in the end-plate membrane.''
Explanation:
Myasthenia gravis represents a human autoimmune disease. The neuromuscular junction abnormalities that occur in this disease are due to antibody-mediated processes. A reduction in the number of functional acetylcholine receptors on the postsynaptic membrane was established to contribute to the physiological abnormalities of myasthenia gravis. The reduction in receptors is due to immunological alterations directed against the acetylcholine receptor. Normally, when acetylcholine binds to its receptor, it opens allowing the rapid entry of cations, especially sodium. With this, the depolarization of the postsynaptic region of the muscle fiber occurs. Although acetylcholine is normally released in myasthenia gravis, it is not capable of causing an action potential in the muscle sufficient to initiate or weaken contraction. In patients with myasthenia gravis, failure to activate muscles is responsible for myasthenic fatigue. Most patients have elevated serum titers of antireceptor antibodies, which in turn accelerate receptor degradation.
