Neco Model Questions Vol1 2022 Biology Question 5

Practice objective / multiple choice question 5 from the 2022 Neco Model Questions Vol1 Biology examination.

Neco Model Questions Vol1 2022 Biology Objective / Multiple Choice Hard Difficulty
Question 5 NECO_MODEL_QUESTIONS_VOL1 • 2022 • BIOLOGY • objective

In a forest, light‑barked trees constitute \(60\%\) of the trunks and dark‑barked trees \(40\%\). A moth species occurs as two colour morphs: a light morph (\(30\%\) of the population) and a dark morph (\(70\%\)). Predators detect a moth with probability \(0.2\) when its colour matches the bark and \(0.8\) when it mismatches. Assuming moths settle randomly on tree trunks in proportion to bark type, calculate:\n\na) the survival probability of an individual of each morph;\nb) the overall survival probability of the moth population.

Answer Options

A. Light morph survival = 0.60; dark morph survival = 0.40; overall survival ≈ 0.500
B. Light morph survival = 0.48; dark morph survival = 0.52; overall survival ≈ 0.500
C. Light morph survival = 0.44; dark morph survival = 0.56; overall survival ≈ 0.524
Correct Answer D. Light morph survival = 0.56; dark morph survival = 0.44; overall survival ≈ 0.476
Correct Answer
D
Correct Option:
Light morph survival = 0.56; dark morph survival = 0.44; overall survival ≈ 0.476

About This Question

This is Neco Model Questions Vol1 2022 Biology Question 5. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Biology examination.

Difficulty level: Hard .

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