Disturbances Change Populations Practice Test

A wildfire occurred in a pine forest in Year 2. The table shows the deer population over time. Disturbances can change population dynamics. If a similar wildfire happens again in Year 6, which prediction about future population change is supported by the evidence from the first wildfire?

Deer population (individuals): Year 1 = 300, Year 2 = 290 (wildfire), Year 3 = 180, Year 4 = 200, Year 5 = 240, Year 6 = 270

A drought occurred in a grassland between Year 2 and Year 3. The table shows the rabbit population size over time. Disturbances can change population dynamics. Based on the data, which explanation best describes the population response to the disturbance using evidence?

Rabbit population (individuals): Year 1 = 120, Year 2 = 130, Year 3 = 70, Year 4 = 90, Year 5 = 110