Start learning →

The two key concepts of Darwinian theory are natural selection and:

ABlocking descent
BBridging descent
CBranching descent
DBlending descent
Answer & Solution
Correct answer: C. Branching descent
1. Darwin's theory rests on two pillars. 2. Branching descent and natural selection are the two key concepts. 3. So the correct answer is branching descent. _Source: syllabus Biology, Ch 7 'Evolution'_
Practise this question with Quill — AP Intermediate 2nd Year →

Keep practising Evolution

Browse all Evolution questions for AP Intermediate 2nd Year, or explore more Biology topics.

Start a Evolution lesson →
Related questions
Before or after industrialisationSpot the one that does not fitQuick picks on evolutionFill the gaps on evolutionTrue or false on evolutionHomologous or analogousMatch each form to its brain sizeOrder the human line