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Biology Test #1 (Microscope (Objective Lens (Medium, Low, High),…
Biology Test #1
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Cells
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All organisms are built out of microscopic objects called cells. They are the smallest thing considered to be living.
All plants and animal cells are multicellular but there are microscopic organisms like bacteria, euglena and e. coli are unicellular
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Diffusion
The net movement of particles spreading throughout an area due to particles random movement through a concentration gradient from a higher concentration to a lower concentration.
The steeper the gradient is, the faster the rate of diffusion and vice versa.
Osmosis
The process or movement of particles (water) moving from a higher water potential to a lower water potential through a semi-permeable membrane
