Answer:
A. humans going underwater and exhaling
Explanation:
The dissolved oxygen in water refers to the amount of oxygen that is found in water. However, there are various ways that oxygen dissolves in a body of water, these includes;
- Photosynthesis of aquatic plants: Oxygen is the waste product of the photosynthetic process carried out by green plants. Hence, when aquatic plants undergo photosynthesis, oxygen from them tend to dissolve into water.
- Diffusion from the atmosphere: Oxygen from air or atmosphere also dissolves in water
- aeration as water moves over rocks and debris, and from wind and waves
However, humans do not exhale oxygen but carbon dioxide, hence, it is not a source of dissolved oxygen
Antagonist, which is a drug that inhibits the production of a chemical in the body. This is the opposite of an agonist drug.
Molds is not. Think of "Did kind philip come over for great spaghetti?" <span>
<span>Kingdom, Phylum, Class, Order, Family, Genus, Species</span></span>
Our muscular system works alongside with nerve impulses, the muscles and of course, the brain cells too. Muscle contractions happen when these three works all together. Nerve impulses are triggered by different stimuli and once the body senses, movement becomes possible as the brain sends the muscles the signal to move.
