The diaphragm is the large dome-shaped muscle that rests right under the lungs and separates the abdominal cavity from the thoracic cavity. The contractions of the diaphragm are what truly facilitate the movement of air in and out of the lungs. The contraction of the diaphragm, or breathing in, leaves more room in the chest cavity for the lungs to expand as the diaphragm "tightens". The expanded lungs are filled with oxygen-rich air which is then is diffused through capillaries to different parts of the body. The process of breathing out occurs when the diaphragm relaxes, slowly resuming its position its original position in the chest cavity. When relaxing, carbon dioxide is forced out of the lungs.
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compacted and cemented together
brainliest please
Jellyfish, corals, and hydras belong to the group of animals called cnidarians.
The main characteristic of this group is that all of its members possess specialized cells called cnidocytes which often produce venom and have a role in capturing the animals prey.
Answer: The ultimate goal of the peer review process is that you can have others review and look over your work for things that are incorrect, need fixing, or need rewording. When we write things on our own, we sometimes make unconscious errors that we sometimes do not even catch in revision. Having a new set of eyes look at something helps to catch errors that we might miss. It is very similar to reading your work out load to catch errors, as reading something out loud is another effective strategy when reviewing your work.
