Question

thursday, jan. 8th:

1. how is each level defined?

1. how are the levels of organization within an ecosystem organized?

1. look at the following examples and tell me what level of organization it would be.

organism (o) population (p) community (c) ecosystem (e) biome (b)

__ a group of rabbits __ grasslands
__ plants, animals & water __ all living things in an area
__ a rabbit __ a single organism
____ all members of one species
____ organisms that live in an area along with their nonliving environment
____ organisms grouped together according to climate, vegetation, & adaptations,

Explanation:

1. Definitions align with ecological hierarchy: individual → same-species group → multi-species group → living + non-living → global climate-adapted groups.
2. Levels are hierarchical, increasing in complexity and scope.
3. Classifications based on matching examples to each level’s definition (e.g., "single organism" = Organism; "same species" = Population).

Answer:

1. Each level is defined by its scope of living (and non-living) components:

• Organism: Individual living thing.
• Population: All same-species organisms in an area.
• Community: All living things (different species) in an area.
• Ecosystem: Living things + non-living environment in an area.
• Biome: Groups of ecosystems with similar climate/vegetation/adaptations.

1. From smallest to largest: Organism → Population → Community → Ecosystem → Biome.

3.

• A group of rabbits: P
• Grasslands: B
• Plants, animals & Water: E
• All living things in an area: C
• A rabbit: O
• All members of one species: P
• Organisms + nonliving environment: E
• Organisms grouped by climate/vegetation/adaptations: B