There are several techniques used to evaluate the activity of the brain, each technique has its own mechanism. One of the most known technique with repeated scans is Computed tomography.
Computed tomography (CT) is a technique that <span>includes repeated scans to allow researchers to see the brain at work. the x-ray beams are aimed at the subject's head then sampled by one of the many detectors in the machine.</span>
It was plants. Plants used photosynthesis, basically the sun's energy. And other animals ate the plants, and other animals ate the animals that ate the plant.
The word biology mean the so study of:
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"the study of the earth and the living organisms "
