Answer:
the correct sequence of the events happened during nerve impulse is (d): 2,1,4,3
Explanation:
Originally K+ ions remains inward the membranes while Na+ ions remains outward to maintain a resting potential of membrane.
Upon stimuli Sodium channels open on membrane and Na+ diffuses inward leading to the depolarization of membrane that is it becoming more positive due to Na+ and K+ ions.
To regain it polarized state or in repolarization state Potassium channels open and K+ begun to diffuse outward while Sodium channels gets closed and Na+ ions remains inside the membrane.
Potassium channels are not efficient as compared to Sodium Channels, so an excess amount of K+ion move outward so Hyperpolarization state achieved.
As the both ions are on the wrong side and will not be available for the next nerve impulse. Hence in Refractory period by the help of Na+/K+ pum, both ions move back to their original place and membrane achieve its resting membrane potential state.
Answer:
Gap Junctions.
Explanation:
Gap junctions are intercellular channels that allows the cell transfer of molecules, ions and electric impulses.
They are connected through the protein channel and are found in many parts of vertebrate and invertebrate nervous systems.
Its most important function is to control the activities of adjacent cells.
Answer:
every arthropod have jointed legs
Explanation:
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Dish soap and baking soda are combined in hot water to create a solution. The hood filters should soak in the solution for ten to fifteen minutes. Scrub the filters.
<h3>How frequently should you clean a vent hood?</h3>
How frequently should I have my hood(s) cleaned? It varies. Depending on the amount of food cooked, the type of food served, and the type of fuel used, the National Fire Protection Agency (NFPA) 96 Standard mandates that your kitchen exhaust system be properly cleaned anywhere from once a month to once a year.
<h3>What function does a hood filter serve?</h3>
In order to stop smoke, grease, and debris from entering the ventilation system, hood filters are installed over stoves and are intended to collect and remove these substances. Grease, smoke particle matter, and other sorts of waste would accumulate in the air ducts without these hood filters and could provide a fire risk.
Learn more about hood filters here:
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