You are looking at very lightly stained cells under the microscope, and you want to increase the contrast so that you can see them "better." you the iris diaphragm to the light.

Building glycogen from glucose molecules is an example of what

How do you date a sample of rock that you suspect as being one of the earliest on earth

The is an estimate of the fewest number of organisms a population needs to avoid extinction. this measurement will most if the number of offspring each female in the population produces increases. if the population's this measurement will most likely increase. 1 population density, minimum viable population, carrying capacity 2 decrease, be unaffected, increase 3 death rate increase, dead rate decrease