Which technique is used to locate problems within blood vessels throughout the body ?

The correct answer is: Magnetic Resonance Angiography.

Explanation:

The MRA, abbreviated from Magnetic Resonance Angiography, is a technique used in medicine to help locate abnormalities in the blood vessels, such as aneurysms (weakening of the arteries' walls) and atherosclerotic plaques (produced by cholesterol and a common cause of heart attacks and strokes).

The MRA uses a magnetic field, radio waves, and a computer. Sometimes, doctors may also use contrast material, commonly administered with a small intravenous (IV) catheter in the vein.

relative dating involves things like higher layers are most recent than rocks lower in the sequence. this can be extended to the known sequence of fossils. rocks containing rabbit fossils are later than those containing dinosaur fossils.  

absolute dating methods mainly use radioactive elements that have known rates of decay and produce recognizable products. for example potassium 40 decays to produce argon. once a rock has solidified the argon is trapped. by measuring the argon and potassium0 you can get an accurate number for the age.  

some other methods are good for archaeological ages. dendrochronology involves recognizing the sequence of tree rings. the orientation of magnetized particles in baked clay can be used to date a fire.

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if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.