A cell is the smallest unit of life, it is often called “ building block of life” the human body is composed of trillions of cells , all with their own specialized function
During DNA replication, the hydrogen bonds must be broken between the complementary nitrogenous bases in the DNA double helix
Ex. Air freshener.
simple diffusion is the process of a substance (such as air freshener) moving from high concentration to low concentration with little to no energy.
Answer:
The cells on the cornea are maintained by pheripheral vessels and surrounding fluids.
Explanation:
*- The capillaries of the limbus nourish the peripheral part of the cornea.
*- Tears supply of glucose in the tear film
*- Aqueous humor nourishing the outermost layers of the cornea the endothelium being a unicellular layer
Once you get the item generally focused on the coarse adjustment, you should leave it alone. If you try to move it again, the chance is you'll run into the slide and either knock the specimen or even scratch the microscope's lens. Always use the fine adjustment, and nothing else, once you have set the coarse adjustment to the appropriate level. Hope this helps!