Answer:
Diaphragm
Explanation:
This is also referred to as the iris.it is located under the stage of the microscope. It's main role is to control the quantity of light that gets to the specimen. The diaphragm is adjustable. Each if the 5 holes in the disc have varying diameter. And it is helpful for adjusting contrast and resolution as regarding the specimen
The DNA tells a ribosome how to assemble a protein.
Pretty sure it <span>C) penta-radial symmetry.</span>
They would not be able to survive in an environment without sunlight. For instance, they would not be able to survive in caves, because they need sunlight for food and if there is no sunlight then they can not create food and would starve.
Holding your breath while ascending can lead to all of the above options.
Surfacing excessively fast or holding the breathing while swimming to the surface can make the air in the lungs expand which is known as pneumonic barotrauma. This might break lung tissue, which can prompt gas bubbles to be delivered into the blood vessel dissemination (arterial gas embolism).
The air in the lungs becomes risky when an individual ascends. On the off chance that somebody holds their breath while rising to the surface, the lungs and the air inside them extend as the water pressure decreases. Since that air has no place to escape, it continues to expand against the walls of the lungs, no matter what the organ's capacity.
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