Answer: D
Explanation:
It leads to a healthier heart, coming from the name cardio - respiratory (cardio means heart)
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Carbohydrates is the first source of energy for the body
Explanation:
The principal energy source in human body is of carbohydrates. They are consisted of starch and sugar, which breaks down in glucose and works as the first energy source in body. It is used for fuel works of body or can be stored in muscle and in liver as glycogen.
Carbohydrates that are in the form of dietary does not cause weight gain in the presence of lipogenesis. It balances energy in an individual’s body as they are required in organs like- brain.
I believe that 36% of 9th grade girls are likely to be involved in drinking, based on recent studies.
The odorant molecules arrive either directly by diffusion into the mucus, or are supported by transport proteins (odor binding protein or OBP) that allow the hydrophobic molecules - majority - to penetrate the mucus covering the epithelium, and thus to reach the membrane receptors present on the eyelashes of the olfactory neurons. These transport proteins are thought to concentrate odorant molecules on membrane receptors. As ligands, the odorant molecules bind to membrane receptors on the eyelashes, triggering a transduction pathway for a stimulus involving G.olf protein (first messenger), adenylate cyclase, and cAMP ( second messenger). The second messenger causes the opening of ion channels Ca2 + / Na + present on the plasma membrane of the olfactory receptor, these two ions then enter the cell. Ca2 + causes the opening of a Cl- channel, the output of this ion causes depolarization of the membrane so that the olfactory receptor produces action potentials. These impulses will go directly to the olfactory bulb, in the prefrontal region of the brain, where this information (and that of taste) is processed by the body.
