1. This graph shows an aphid population of a forested area in the northern United States
during a typical year.
Aphid Population Graph
Number of Aphide
Which conclusion can be made based on the
graph data?
A. Peak aphid population numbers occur in
September
B. Most of the aphids migrate to another place in
the winter.
C. The population of aphids depends upon
populations of predators.
D. Aphid population numbers are related to
seasonal temperature changes.