Biology For Igcse #1 ◎

A two-part, international naming system (Genus capitalized, species lower case, in italics) that reduces language confusion.

Characteristics of Living Organisms - IGCSE Biology Revision

Organisms are classified into five major kingdoms, ranging from complex multicellular organisms to single-celled bacteria: Biology for IGCSE #1

To be considered alive, an organism must fulfill seven specific criteria, easily memorized using :

ovement, R espiration (releasing energy), S ensitivity (detecting stimuli), G rowth, R eproduction, E xcretion (removing metabolic waste), and N utrition. 🗂️ 1.2 Concept and Uses of Classification Beyond physical features, modern classification uses DNA and

Classification organizes organisms into groups based on shared characteristics.

Beyond physical features, modern classification uses DNA and genetic analysis to determine evolutionary relationships. 👑 1.3 The 5 Kingdoms of Living Organisms 🧬 1

. This foundational unit outlines the essential life processes that define living things and explains how scientists organize them into groups. 🧬 1.1 The 7 Characteristics of Life