Figure 52.4
-What conclusion can you draw from the figure above?
A) Mussels can sense the presence of crabs only visually.
B) Without direct contact, mussels can sense the presence of crabs.
C) Shell thickness is a non- inducible defense.
D) Mussels are increasing their shell thickness in response to water current.

Question

Figure 52.4
-What conclusion can you draw from the figure above?
A) Mussels can sense the presence of crabs only visually. 
B) Without direct contact, mussels can sense the presence of crabs. 
C) Shell thickness is a non- inducible defense. 
D) Mussels are increasing their shell thickness in response to water current.

Quizplus · Accepted Answer

The figure shows that mussels respond to the presence of crabs even without direct contact, indicating that they can sense them through other means, such as chemical cues in the water. This supports choice B. None of the other choices are supported by the figure.

Figure 52.4 -What Conclusion Can You Draw from the Figure Above