WGU C190 Intro to Biology-Exam Questions with Complete & Verified Solutions

WGU C190 Intro to Biology-Exam Questions with Complete & Verified Solutions 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. One of these organelles is the nucleus; it encloses the DNA within the cell. Microorganism - Answer ️️ -Sixth level. Single-celled life form. Consists of just one cell and include unicellular organisms such as bacteria and protists. Tissue - Answer ️️ -Seventh level. Formed when similar cells work together to fulfill the same detailed function. Organ - Answer ️️ -Eighth level. Collections of tissues that work together to carry out a common general function. Present not only in higher level animals but also in plants. Organ System - Answer ️️ -Ninth level. Consists of functionally related organs. Mammals have many. Organism - Answer ️️ -Tenth Level. Individual living entities that survive and reproduce as a unit. For example, each tree in a forest. Population - Answer ️️ -Eleventh level. Consists of all the individuals of a species living within a specific area. Community - Answer ️️ -Twelfth level. Populations can interact with each other in positive and negative ways, and together they form this. Ecosystem - Answer ️️ -Thirteenth level. Consists of all the living things in a particular area together with the abiotic, or nonliving, parts of that environment. Biosphere - Answer ️️ -Fourteenth level. The highest level of organization in living systems. The collection of all ecosystems on Earth. Includes all habitable zones on the planet, including land, soil, and rocks to a great depth in the Earth's crust; water and ice; and the atmosphere to a great height. Emergent Properties - Answer ️️ -Characteristics of a system that are not present in any of its component parts. Biology - Answer ️️ -The scientific study of life and is the branch of science that studies living organisms and the way organisms interact with their environments. Homeostasis - Answer ️️ -The ability or tendency of organisms and cells to maintain stable internal conditions. Nutrient - Answer ️️ -Any matter an organism needs but cannot make for itself. Energy - Answer ️️ -The capacity to do work or to make a change in the location, temperature, or structure of matter. Does not have mass and it does not