Butterflies laying their eggs on milkweed plants occurs at which level of the biosphere hierarchy?

• A. Organism
• B. Molecule
• C. Population
• D. Community

Answer: (D)

Verified step by step guidance

1. Understand the biosphere hierarchy: The biosphere hierarchy includes levels such as molecule, cell, organism, population, community, ecosystem, and biosphere. Each level represents increasing complexity and interactions.
2. Define the term 'community': A community refers to all the populations of different species living and interacting in a specific area. It includes interactions between organisms of different species.
3. Analyze the scenario: Butterflies laying their eggs on milkweed plants involves an interaction between two species—the butterflies and the milkweed plants. This interaction is characteristic of a community level.
4. Compare with other levels: The organism level refers to a single individual, the molecule level refers to chemical structures, and the population level refers to individuals of the same species. None of these levels describe interactions between different species.
5. Conclude that the correct level of the biosphere hierarchy for this scenario is 'Community,' as it involves interactions between butterflies and milkweed plants.