The Organism Info

Internal processes like a snake producing venom or a human sweating to cool down. 5. The Organism and the Environment

Single-celled, often found in extreme environments like hot springs or salt lakes.

Regulate its internal environment (like temperature or pH). The Organism

React to external changes in its environment. 2. The Hierarchy of Structure Organisms are organized in a "ladder" of complexity.

Organisms with complex cells containing a nucleus. This includes: Protists: Mostly single-celled (amoebas). Fungi: Decomposers (mushrooms, molds). Internal processes like a snake producing venom or

The specific role an organism plays (e.g., a bee as a pollinator).

This guide breaks down —the fundamental unit of life—from its basic building blocks to how it survives in a complex world. 1. What Defines an Organism? Regulate its internal environment (like temperature or pH)

Heterotrophs (must eat other organisms for energy). 4. Survival Mechanisms