Capillaries<span> are the smallest of the body's blood </span>vessels<span>. They are only one cell thick, and they are the sites of the transfer of oxygen and other nutrients from the bloodstream to other tissues in the body; they also collect carbon dioxide waste materials and fluids for return to the veins.</span>
This is heavily disputed, and honestly, it varies on a person-by-person basis. Some people are visual learners (so it's effective for them to use videos and pictures to help them study), some prefer being hands-on, etc...
Generally though, I'd say the most effective method that works for most people is through visceralisation. This is the process of associating concepts, words. phrases etc. with your different senses (sound, touch, images...). You can read up more on it by searching up "visceralisation for studying".
Also called aerobic<span> exercises. Any of various sustained exercises, like jogging, rowing, swimming, or cycling that stimulate and strengthen the heart and lungs thereby improving the body's utilization of oxygen.</span>
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Answer:
<em>A measure of intelligence based on head size is likely to have a "high" level of reliability and a "low" level of validity.</em>