O air-filled cavities that secrete mucus to keep the nose moist and remove bacteria.
Answer:
Everyone can benefit from lifting weights is the correct answer.
Explanation:
Regression: The player's performance declined this week due to the regression of his previous injury.
Denial: Although all evidence suggests that he committed the crime, he won't admit to it because he is in denial.
Projection: The students couldn't see the paper the teacher was holding up so the teacher put a projection the front board to enlarge the paper.
Hope this helped.
Answer:
A brain ventricle is a cavity in the brain with an open channel leading to it.
Explanation:
The brain and spinal cord are encased and protected by three layers of tissue, all called meninges. The outermost layer is called the dura mater, and covers both the brain and spinal cord. On either side of this layer, where it crosses or penetrates into these organs, are two extensions that look like small tubes coming from under a tent. These extensions are called cranial nerves because they come out on either side of the head just below its most prominent part - hence "cranial".
