A human cheek cell is thin, flat and has a large nucleus that contains the DNA. Its plasma membrane helps the cell to maintain suitable temperature while giving it its shape. Since it is selectively permeable, it only allows certain molecules into and out of the cell.
Answer:
Points A (most likely) converged under the rest of the layers and was first on the surface. The sandstone however has had layers after layers stacked onto after millions of years.
Explanation:
Answer:
See the answer below
Explanation:
After routinely cleaning the microscope and ensuring that all the parts are working fine, Dylan would have to <u>place the slide on the stage of the microscope, switch on the light source, and adjust the diaphragm of the condenser to ensure that adequate light gets to the slide on the stage</u>.
Thereafter, Dylan would need to<u> turn the revolving nosepiece in order to shift to the lowest objective of the microscope</u> assuming it is not already in place. Then,<u> the slide on the stage is brought into focus (by viewing through the eyepiece/ocular) by using the coarse/fine adjustment knob to bring the stage up/down.</u>
Once the slide is brought into clear focus, <u>the revolving nosepiece is then turned to switch the x20 objective. </u>Generally, at higher objectives, the coarse adjustment knob is rarely needed and the fine adjustment knob is solely used instead to bring the slide back into focus. Thus, Dylan can see the cells of the onion at the desired objective.
Answer:
When blood sugar is elevated, insulin is released to promote the storage and absorption of glycogen and glucose. Insulin helps reduce levels of glucose in the blood by promoting its absorption from the bloodstream to skeletal muscles or fat tissues.
Explanation: