4. To determine the frequency of ala mutants a fluctuation test was done using 30 tubes with a final concentration of 108 bacteria each. From
each tube 0.1 ml of culture was plated on medium that selects for ala
mutants. 27 of the tubes yielded ala mutants but 3 of the tubes yielded
no mutants. Based upon these results, use the Luria-Delbruck
calculation to determine the mutation rate to ala.

Development of new communities in disturbed environments, such as a burned or a clear cut forest, is called

Match the following terms and definitions. 1. species that are adapted to live in equilibrium at carrying capacity population density 2. population growth that reaches equilibrium and carrying capacity population 3. death rate mortality 4. birth rate k-selected 5. a group of interacting individuals of the same species within the same geographic area natality 6. the number of organisms living in a particular area logistic growth

Based on the number of offspring they produce at one time organisms are classified into two categories many offspring at once and a few at a time sort the carry sticks based on the category they describe