Final answer:
The growth rate of the lizard population is 31.67 individuals per year, calculated using the change in population size over a six-year period.
Step-by-step explanation:
The growth rate of a lizard population that increases from 22 to 212 individuals over a six-year span can be calculated using the formula for linear growth rate, which is the change in population size divided by the time period over which the change occurred. To find this, subtract the initial population from the final population and then divide by the number of years:
Growth rate = (Final population - Initial population) / Number of years
Growth rate = (212 - 22) / 6
Growth rate = 190 / 6
Growth rate = 31.67 individuals per year (rounded to two decimal places)