There are a total of four mechanical events of the cardiac cycle, all of which are associated with their own electrical events. Recall that in order for a muscle to contract, it must receive an electrical signal that leads to a depolarization phase. If the heart is to perform a series of contractions, then, for each contraction, the muscle must relax as well. Relaxation of the muscle is correlated with the repolarization of the muscle and indicates a time in which the chambers are filling with blood. Which portion of a normal ECG represents ventricular depolarization

the wires in the toaster turning red and the toast crisping and turning brown

question: which statement best describes the different properties of metals?

answer: they are shiny and bend without breaking.

since metals have certain characteristics properties, they include the following: they are ductile, malleable, shiny, hard, lustrous, flexible and they are good conductor of heat and electricity. so therefore, metals are not dull and they are not non-flexible as listed. instead, they are shiny and flexible.

hope this , have a good day. c;

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg 

nb

explanation:

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