VPA-0059
QUESTION
Control of three host tick is difficult than that of one host tick because:
(a) Life-cycle of three host tick three different animals harboring different stages viz larvae, nymphs and adults.
(b) Both the moults in the life cycle of one host tick occurs on the ground.
(c) Both the moults in the life cycle of three host tick occurs on the ground.
(d) One host tick has less biotic potential than of three host tick.
Which of the statements given above is/are correct?
OPTIONS
(A) (a) and (b)
(B) (a) and (c)
(C) (c) only
(D) (d) only
ANSWER
(C) (c) only
EXPLANATION
In a three-host tick, larvae, nymphs, and adults generally feed on three different hosts, and both molts occur off the host on the ground or in the environment. Thus statement (c) is correct; statement (a) describes the three-host cycle but is incomplete as worded, while (b) incorrectly attributes ground molts to one-host ticks and (d) is not a defining rule.