Answer:
<em><u>The diaphragm muscle contacts and relaxes to force the intake and expulsion of air from the lungs.</u></em>
Explanation:
The diaphragm is a large, dome-shaped skeletal muscle. It is very thin, and is located at the base of the chest just above the abdomen.
It plays a very important role during respiration or breathing by forcing the intake and expulsion of air from the lungs.
During inhalation, this muscle contracts, and flattens- in the process, a vacuum is created, effectively pulling air into the space. In exhalation the muscle relaxes, and is no longer flattened, this reduces the volume of the region, forcing air out of the lungs.
These contractions occur rhythmically and continuously.
Answer:
Mollusks don't have legs, though some have flexible tentacles for sensing their environment or grabbing things. Most mollusk species grow a hard shell for protection, but their shell grows in only one or two pieces. It doesn't have joints like the exoskeletons of insects and crustaceans
Explanation:
Answer from Go.ogle
Hello user!
Cellular Respiration Equation is,
Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O
Also if u even forget what is the equation of it just remember that it is the opposite of photosynthesis
Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules and complex structures into adenosine triphosphate (ATP), and then release waste products. Remember when complex substances are broken down into simpler it releases energy. The enzymatic reactions of cellular respiration begin in the cytoplasm, but most of the reactions occur in the mitochondria. Cellular respiration occurs in the double-membrane organelle called the mitochondrion. The folds in the inner membrane are called cristae. plz mark brainlist
