Question

if resources are limited to the \low\ level, what is the estimated population size? * 1 point
effect of resource availability on population size
bar graph with x-axis: resource availability (low, medium, high); y-axis: population size of organisms (0-100); bars: low=20, medium=50, high=90
options: 90, 50, 20, 0

Explanation:

Step1: Analyze the bar graph

The bar graph titled "Effect of Resource Availability on Population Size" has three categories of resource availability: Low, Medium, and High. For the "Low" resource availability, the bar (red) is labeled with a population size of 20 organisms.

Step2: Match with the question

The question asks for the estimated population size when resources are limited to the "Low" level. From the graph, the bar for "Low" resource availability shows a population size of 20.

Answer:

20 (corresponding to the option with 20, e.g., if the options are as in the image, the correct option is the one with 20, like "20" among the radio button options)