Question

When two species of different genealogy come to resemble each other as a result of adaptation the phenomenon is termed:

• A. Convergent evolution
• B. Coevolution
• C. Divergent evolution
• D. Microevolution

Answer 1

The correct option is A

Convergent evolution

The correct option is A.

Explanation of the correct option:

1. It refers to a pattern of evolution whereby individuals of different ancestral lines converge owing to adaptations.
2. It leads to the formation of analogous organs in animals.
3. Examples include the wing of a bat and the wing of a butterfly.
4. One is a modified forelimb while the other is an outgrowth of the thoracic body wall.

Explanation of the incorrect options:

Option B:

Coevolution is termed the evolution event that occurs when two or more ancestral lines evolve parallel in the same space-time matrix.

Option C:

Divergent evolution is the event whereby a single ancestral species undergoes divergence to give rise to new species adapting to differing environments.

Option D:

1. Macroevolution is defined as changes in the frequency of a gene in a population.
2. These are subtle changes that can occur for short periods, and may not be visible to a casual observer.

Final answer: When two species of different genealogy come to resemble each other as a result of adaptation the phenomenon is termed Convergent evolution.