In explaining the term camouflage, to a class, the diagram above show four varieties, P, Q, R, and S of the same species of fish living amongst water plants in a river were used.
Which of the varieties is likely to decrease most in number if a predatory fish is introduced into the river?
A.
P
B.
Q
C.
R
D.
S
Correct answer is C
No explanation has been provided for this answer.