1. Osmosis
Recall that osmosis specifically refers to <em>water specifically</em> moving through a membrane in and out. In this case, water is moving out of cells through the cell membrane into the water.
2. Diffusion
Diffusion is the movement of molecules according to a concentration gradient. Because of this, diffusion is a form of passive transport because it does not require energy. In this case, oxygen is moving freely from the lungs into the bloodstream. This process does not take energy, and because oxygen is a small, non charged molecule, it can diffuse freely, therefore the process is diffusion.
3. Active Transport
The sodium pump is a prime example of active transport. Remember that when pumps are involved, it essentially means whatever is moving cannot move by itself, but rather needs force behind it, which is provided by the pump. Because sodium cannot simply move out of a nerve cell, this is a form of active transport.
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Answer:
Explanation:
This protein makes up part of the sarcomere and forms macromolecular filaments composed of multiple myosin subunits. Similar filament-forming myosin proteins were found in cardiac muscle, smooth muscle, and nonmuscle cells.
The coral reefs will be damaged by low calcium carbonate levels is 85% that is 241,655 km².
<h3>
What is coral reef?</h3>
Corel reef is defined as the massive underwater structures made of coral, which are colonial marine invertebrates. They are very important as they are the major source of food and development of new medicines.
If there is only 15% sufficient levels of calcium carbonate, that means =85% will be damaged by low levels of calcium carbonate by 2050.
Presently there are 284,300 km² of coral reefs.
When 85% are damaged, then
= 284,300 x 85%
= 241,655 km²
Thus, the coral reefs will be damaged by low calcium carbonate levels is 85% that is 241,655 km².
To learn more about coral reef, refer to the link below:
brainly.com/question/15794949
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Answer:
soil; rice
Explanation:
Bacillus cereus is naturally found in the soil. B. cereus is known to contaminate rice, which, if undercooked and ingested, can lead to gastroenteritis. In this example, the reservoir for B. cereus is the soil, and the source of infection is the rice.
A reservoir refers to the breeding ground or natural habitat of micro living organisms such as bacterias, fungi, worms, etc. Thus, a reservoir hosts or harbours pathogens and usually serves as a source of infection to other living organisms.
On the other hand, a source of infection refers to a contaminated material from which a disease can be acquired by another living organism.