Question

Two different species of single-celled organisms that eat the same food were placed in the same container. A constant food supply was provided starting on day 2, and the populations were monitored daily. The graph represents the growth of the two populations. Select the best answer choice to explain the growth of the two populations.

Option 1: P. caudatum became a predator for P.aurelia
Option 2: The two species shared available resources
Option 3: P. caudatum out-competed P. aurelia
Option 4: P. aurelia out-competed P. caudatum

Answer 1

The population of P. aurelia outcompetes that of P. caudatum because they share the same resources, and P. aurelia is better at competing for those resources.

Step-by-step explanation:

The graph represents the growth of two different species of single-celled organisms that eat the same food. The population of P. aurelia outcompetes the population of P. caudatum because they share the same resources and P. aurelia is better at competing for those resources. This is an example of the principle of competitive exclusion, where one species outcompetes another when competing for the same resources.