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Question (31)

QN005588

If a mosquito egg hatches in 2 days and adult emerges after 10 days total, larva + pupa together last:

(A) 6 days
(B) 7 days
(C) 8 days
(D) 9 days

Correct Answer: C

Explanation:

10 − 2 = 8 days

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Question (32)

QN005589

A froglet is best described as:

(A) Egg with shell
(B) Fully aquatic stage
(C) Intermediate stage between tadpole and adult
(D) Adult frog without legs

Correct Answer: C

Explanation:

Transitional stage

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Question (33)

QN005590

If 5 tadpoles become froglets every 3 days, how many froglets form in 12 days?

(A) 15
(B) 20
(C) 25
(D) 30

Correct Answer: B

Explanation:

12/3 = 4 cycles → 5 × 4 = 20

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Question (34)

QN005591

Which stage of mosquito is most suitable for disrupting life cycle using kerosene oil?

(A) Egg only
(B) Larva and pupa
(C) Adult only
(D) Egg and adult

Correct Answer: B

Explanation:

Oil blocks air at water surface affecting larva/pupa

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Question (35)

QN005592

A frog life cycle begins with spawn and ends with:

(A) Tadpole
(B) Froglet
(C) Adult frog
(D) Egg again immediately

Correct Answer: C

Explanation:

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