A remote island ecosystem experiences a volcanic eruption that eliminates all vegetation and animal life. Which process explains the subsequent, predictable recolonization of the island by various species?

💡 Explanation

Ecological primary succession explains recolonization because pioneer species colonize barren environments, modifying them to allow other species to establish; therefore, succession explains the progression, rather than random mutation or competitive exclusion determining which species appear first.

• Which process explains why aphids feeding on phloem experience a rapid influx of sugar, resulting in honeydew excretion?
• What causes reduced gene expression when DNA methylation occurs in a specific gene promoter region?
• What happens to plant palatability when tannin concentration increases significantly?
• What happens to a differentiating stem cell's gene expression profile when transcription factors activate lineage-specific genes?
• What causes decreased palatability in grazed Acacia trees?
• What causes endotherms in cold environments to maintain core temperature?