A snake species that has migrated from the mainland to a small island eats banana slugs instead of lizards and mice, its usual diet. Which statement best explains this change in behavior? 1. The genotype that affects food choice is not isolated to a single phenotype.

2. Instinctual food choice by snakes is not related to genotypic flexibility.

3. Diet is exclusively controlled by snake genetics, not by nature.

4. Gene expression for mainland snakes is rigid and confined to one phenotype.

The answer is number 2

Wetlands form where water and land meet. a lake with a wetland fringe can fill in with decayed plant and animal material to become a wet meadow. a pond can fill in to become a bog or fen. sediment can fill in a river marsh to become a swamp.flooding of coastal lowlands from rising sea levels has created broad coastal marshes that are protected from wave action by barrier islands or reefs. coastal wetlands also form when rivers deposit sediment as they reach the ocean. plants then take root and hold the soil firm against the forces of tides and waves.