The percentage of surviving brine shrimp reaches its highest when the percentage of salt is 0.5%. It shows that the sample of brine shrimp that we used is best adapted to 0.5% salt water. This lab shows that brine shrimps that can adapt to the environment will survive and pass down their genes, so that the next generation will have these genes that helped them survive. In that way, species evolved to have these genes, which is the process of natural selection.
Other factors that could have influenced the results can be temperature, season, chemical in solution, pH level, sun exposure, type and amount of brine shrimp.
We also did the "tiger lab."
We have red beads to represent dominant alleles and green beads as recessive alleles. Red means alleles that give tiger fur and green means alleles that give tiger no fur. Tigers with fur will survive to reproduce and tiger without fur will die off. In the end, all "tigers" left had fur. They are carrying either HH or Hh genes.
If tigers with HH genes reproduce, they will have HH offsprings. If HH and Hh reproduce, they will have HH or Hh offsprings. If hh and Hh reproduce, they will have Hh or hh offsprings. If hh and hh reproduce, they will have hh offsprings.
Eventually, hhs die off and there comes natural selection.
The only way to have other hh is through emigration or immigration.
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