Unexpected means it was something you did not "expect" to happen such as a car crashing into you which means this is wrong.
Unfair is any injury.
Unnecessary means it was never needed and could have been prevented/not done therefore unnecessary is the best term.
Muscular strength has to do with what at what intensity you can do a task while muscular endurance has to with how long you can do a task
Three traits that might be desired in sheep are:
-larger
-grow faster
-disease free
I think this is ovulation. Not a 100% sure
Electrical impulses known as action potentials initiate t<span>he contraction of the </span>cardiac<span> muscle.</span><span>
The autorhythmicity of cardiac pacemaker cells is made possible by the reduced permeability of potassium.
</span><span> The </span>pacemaker potential<span> is produced by </span>a<span> decrease in membrane permeability to </span>potassium.
