Exhaust system affects fuel efficiency. If you notice you have to fill up your gas tank more often than normal, have your exhaust system checked out by a muffler repair shop. Similar to the vibrations, increased fuel use is a sign something is wrong with your car. When the exhaust leaks, your engine works harder.
Temporal summation is the linear addition of graded potentials that overlap in time; that is, a second potential arrives before the first one from that source has finished. Spatial summation occurs when there is simultaneous arrival of graded potentials originating from more than one synaptic input. Summation occurs at the trigger zone. Typically a multipolar neuron has many active synapses at a given time, with multiple potentials being produced at each.
So scientists can tell where an earthquake is likely to happen, like along the San Andreas Fault. They can look at historical records and get an estimate of how often earthquakes tend to happen along certain transform faults, too.ating Newest Oldest. Best Answer: Most earthquakes occur because of movements along transform plate fault boundaries. Here, you have two plates moving past each other that occasionally get stuck along their margins. Where they come into contact and can't move, pressure builds up.