AP Biology 7.10.A: Conditions for Speciation
Practise AP Biology 7.10.A questions by applying reproductive isolation and the biological species concept to predict when populations diverge.
- Syllabus
- Effective Fall 2025
- Course
- AP Biology
Exam points
- explain that speciation begins when populations become reproductively isolated
- apply the biological species concept using interbreeding and viable, fertile offspring
- predict continued divergence or separate species formation when populations remain isolated
7.10.A—Describe the conditions under which new species may arise question 1
[Maximum number: 1]
Existing isolated brook trout populations in Newfoundland, Canada, were once part of a larger population that was fragmented at the end of the most recent glaciation period about 10,000 to 12,000 years ago. Researchers investigated 14 naturally separated stream populations of brook trout. They found that the populations are all genetically distinct and show differences in morphology.
If two morphologically and behaviorally distinct populations of brook trout remain isolated for many generations, predict the likely impact on both populations.
If two morphologically and behaviorally distinct populations of brook trout remain isolated for many generations, predict the likely impact on both populations. Accept one of the following:
- The two populations will become separate species.
- The two populations will continue diverging (behaviorally/morphologically/ genetically).
1 point
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