Aresearch team studied a large lizard population in the sonoran desert of arizona. in these lizards, gene a is one gene that affects the color pattern on the dorsal surface of the lizard’s body. in 2010, the research team sampled a large number of lizards and determined the genotypes of the lizards for the a gene. they found the following genotype frequencies: a1a1 = 0.17 a1a2 = 0.15 a2a2 = 0.68 in 2011, the research team returned to the study site in arizona and determined that the frequency of the a2 allele is 0.6. one lizard generation has passed. is the population in hardy weinberg equilibrium for the a gene?

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.

condenser is used to focus in the light microscope.