Content Preview

Bio 103 Exam 1 2025 Questions and Answers Characteristics of living organisms - ....ANSWER☑️☑️...-Organization, metabolism, homeostasis, growth, reproduction, response to stimuli, and adaptation. Levels of biological organization - ....ANSWER☑️☑️...-Atom → Molecule → Cell → Tissue → Organ → Organ system → Organism → Population → Community → Ecosystem → Biosphere. Atom - ....ANSWER☑️☑️...-Smallest unit of matter. Molecule - ....ANSWER☑️☑️...-Two or more atoms bonded together. Cell - ....ANSWER☑️☑️...-Basic unit of life. Tissue - ....ANSWER☑️☑️...-Group of similar cells performing a function. Organ - ....ANSWER☑️☑️...-Structure composed of multiple tissues. Organ System - ....ANSWER☑️☑️...-Group of organs working together. Organism - ....ANSWER☑️☑️...-Individual living being. Population - ....ANSWER☑️☑️...-Group of same species in an area. Community - ....ANSWER☑️☑️...-All populations in an area. Ecosystem - ....ANSWER☑️☑️...-Community + non-living environment. Biosphere - ....ANSWER☑️☑️...-All ecosystems on Earth. Metabolism - ....ANSWER☑️☑️...-All chemical reactions in an organism. …FOR STUDY PURPOSES ONLY…©️ 2025 ALL RIGHTS RESERVED… 1