Waec Model Questions Vol1 2023 Biology Question 9

Practice objective / multiple choice question 9 from the 2023 Waec Model Questions Vol1 Biology examination.

Waec Model Questions Vol1 2023 Biology Objective / Multiple Choice Medium Difficulty
Question 9 WAEC_MODEL_QUESTIONS_VOL1 • 2023 • BIOLOGY • objective

A phylogenetic tree of four species is described as follows: from the root, a branch of 5 Myr leads to node X and a branch of 7 Myr leads to node Y. Node X splits into Species A (branch 4 Myr) and Species B (branch 6 Myr). Node Y splits into Species C (branch 3 Myr) and Species D (branch 2 Myr). Which pair of species shows the greatest evolutionary distance and what is that distance (in million years)?

Answer Options

A. Species A and Species C, 22 million years
B. Species A and Species D, 20 million years
C. Species B and Species D, 19 million years
Correct Answer D. Species B and Species C, 21 million years
Correct Answer
D
Correct Option:
Species B and Species C, 21 million years

About This Question

This is Waec Model Questions Vol1 2023 Biology Question 9. It is one of the objective questions from the 2023 Waec Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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