SA scientist named Joseph Connell studied two species of bamacles on the shore of a Scottish Island. In the area between the average tide and the neap high tide, he found
that the population of Species A was smaller than that Species B. He removed
Species B from one area but left both Species A and B in a similar area. The graph
below shows the results of this study,
Barnacle Study
KEY
Population of Species A
- Spees Althout
SO
NA
Son
Time
Based on these data, which hypothesis was Connell most likely testing? .
A The populations of both species of barnacles increase more in warm water than in
cool water
B Barnacles grow larger when they are isolated from other species.
C The two species of barnades compete with each other for resources
D The two species of barnades are closely related to each other.