Answer:
When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale.
<span>The primary distinction is that eukaryotic cells have a "true" nucleus containing their DNA, whereas prokaryotic cells do not have a nucleus. Both eukaryotes and prokaryotes contain large RNA/protein structures called ribosomes, which produce protein. Prokaryotic cells are usually much smaller than eukaryotic cells. Therefore, prokaryotes have a larger surface-area-to-volume ratio, giving them a higher metabolic rate, a higher growth rate, and as a consequence, a shorter generation time than eukaryotes.</span>
Answer:
3
Explanation:
not 100 percent sure but i think so
Andrea became highly aroused and alert when she was stung by a bee thanks to the activation of her reticular formation. Recticular formation is a nerve network of nuclei clusters found in the human brain stem. It has projection to the thalamus and cerebral cortex that allow it to exert some control over which sensory signals reach the cerebrum and the conscious of the body.
