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WGU C190 INTRO TO BIOLOGY UNIT 1 2025 QUESTIONS AND ANSWERS Abiotic - ....ANSWER ...-Non-living, may be within or made by a living organism. Biotic - ....ANSWER ...-Living. Matter is considered ______ if it was ever alive at some point in time Atom - ....ANSWER ...-Smallest level. The basic unit of matter. Consists of a dense nucleus surrounded by electrons. Molecule - ....ANSWER ...-Second level. A chemical structure consisting of at least two atoms held together by a chemical bond. Macromolecule - ....ANSWER ...-Third level. Biologically important molecules that are technically polymers. Example: DNA. Cell - ....ANSWER ...-Fourth level. The fundamental unit of life. Essentially a tiny droplet of water and other molecules enclosed by a fluid "skin" or membrane. The smallest and simplest entity that possesses all the characteristics of life. Organelle - ....ANSWER ...-Fifth level. Compartments inside the cell that contain specific groups of macromolecules and carry out specific cellular functions. it encloses the DNA within the cell. ...COPYRIGHT ©️ 2025, ALL RIGHTS RESERVED..... 100% PASS RATE 1