<span>The Cell theory states that..
1)all living things are composed of one or more cells 2)cells are the smallest units of structure & function of living things 3)New cells are produced by preexisting cells
The 2 Domains that include all organisms that are made of prokaryotic cells are-
bacteria and archaea. these organisms are multicellular and may form colonies
cytoplasm fluid part of the cell
plasma membrane : membrane surrounding the cell
ribosomes : solid,molecular organelles that make proteins
Circular DNA molecule in prokaryotes where genes are found
plasmids
cell wall
rigid structure around plasma membrane
Used for swimming (moving) through a liquid
flagellum
used to adhere to surfaces (like your teeth) fimbriae
as a cell increases in diameter, its volume increases more than its surface area. the surface area to volume ratio is reduced
since the surface is where the cell exchanges substances w/its environment, the reduction in this ratio decreases the rate of exchange. thus making cell work less efficient</span>
Different forms of a given gene are known as "alleles". Alleles are essential for the formation of life and add to diversity both within and outside the organism itself in many ways.
<span>This type of treatment is called aversive conditioning. This is used to avoid or forget the bad or unwanted behaviour. This is done by giving punishment for doing that behaviour and creating aversion on that behaviour.</span>
The sun and the moon has an effect on the tides when they are nearly in line with Earth during a new moon. Because of this t<span>hey produce a tide with the greatest difference between consecutive low and high tides.</span>
An increase in volume DECREASES the pressure in the chest (pressure and volume vary inversely when temperature is held constant -- Boyle's law). Gas can only flow from an area of higher pressure to an area of lower pressure. It can't go uphill -- ever. It can only go from high to low pressure. When the diaphragm and intercostals contract, the diaphragm flattens and the rib cage rises. That increases the volume of the chest. That increase in volume decreases the pressure inside the chest (temperature is held constant -- because the temperature of the chest cavity does not change appreciably. It remains at body temp.). Air then flows from the area of higher pressure (atmospheric) to lower pressure (intrathoracic). That continues until the pressures are equal.
When the diaphragm and intercostals relax, the chest cavity decreases in size, the pressure increases to above atmospheric, and gas flows again from the area of higher pressure (intrathoracic) to lower pressure (atmospheric) until they are again equal.
It has nothing to do with the concentration of oxygen. You can ventilate a lung with ANY gas. It has to do with the change in pressure and only the change in pressure -- which is a function of the volume of the chest cavity.
