Answer: A gyrus (plural = gyri) is the ridge of one of those wrinkles, and a sulcus (plural = sulci) is the groove between two gyri. The pattern of these folds of tissue indicates specific regions of the cerebral cortex. The head is limited by the size of the birth canal, and the brain must fit inside the cranial cavity of the skull.
Explanation: Hope this helps :)
Answer:
<h2>True</h2>
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Earth is closest to the sun every year in early January, when it's <u>winter</u> for the Northern Hemisphere.

Answer:
The answer is false viruses are 1/10th the size of cells
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