Answer:
Adjust the light intensity until an image can be clearly seen. Change the microscope objective lens to the next highest power and repeat step 3. Once at the highest objective lens, you should see graduations that are equal to approximately 10 microns
Answer:
The protein products of proto-oncogenes regulate the processes of cell division and growth.
Explanation:
The proto-oncogenes are the genes that code for the proteins involved in the regulation of cell division, growth, and differentiation. Certain mutations in these proto-oncogenes transform them into the oncogenes.
For example, the "erbB" gene code for receptor of epidermal growth factor which in turn regulates cell division in epidermal cells. The mutated erbB oncogene code for truncated receptor for epidermal growth factor which in turn makes the cell to divide continuously.
Hence, the proto-oncogenes are required by cells to regulate the processes of cell cycle, growth, and differentiation.
Answer:
the correct answer is letter A. True.
Yes, of course it can only be oceanic or continental plate, because there are only two types of tectonic plate. Lithosphere of the Earth is generally composed of either oceanic plate and continental plate.
∆ Oceanic plate is the part of lithosphere usually found under the ocean/sea or in the ocean basin and thinner but dense and very hot.
∆ Continental plate on the other hand, is part of the lithosphere that is often exposed in the Earth's atmosphere and where organisms and humans live, it is thicker but less denser compared to oceanic crust.
Explanation:
They are around the same age