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BIO104 - CH1

Human Biology - Oakland University

QuestionAnswer
Define Biology Study of living organisms and their environment
Identify basic characteristics of organisms 1. Organized 2. Acquire materials and energy 3. Homeostatic 4. Respond to stimuli 5. Reproduce and grow, develop 6. Evolutionary history
Atom Smallest unit of an element
What is composed of electrons, protons, and neutrons? Atom
Molecule The union of two or more atoms
Cell The structure and functional unit of all living things - composed of molecules and atoms
Tissue A group of cells with a common structure and function
Organ Composed of tissues functioning together to perform a certain task
Organ System Composed of several organs working together?
Organism An individuals; complex individuals contain organ systems
Population Organisms of the same species in a particular area
Community Interacting populations in a particular area
Ecosystem Community plus the physical environment
Biosphere Regions of the Earth's crust, waters, and atmosphere inhabited by living things.
Species Group of interbreeding organisms
List levels of biological organizations from smallest to largest Atom, molecule, cell, tissue, organ, organ systems, organism, population, community, ecosystem, biosphere
Metabolism The chemical reactions that occur within a cell.
Photosynthesis The process that converts energy from the sun into chemical energy
Homeostasis The ability of a cell or organism to maintain an internal environment that operates under specific conditions.
Respiration Breakdown organic molecules to make high energy compounds
Autotrophs Make own food
Heterotrophs Need to eat other organisms as food
Development Used to indicate all changes that occur from the time the egg is fertilized until death.
Genes Contain DNA information - contain short sequences of hereditary material that specify the instructions for a specific trait
Evolution Process which a population changes over time
What are the domains? Bacteria, Archaea, and Eukarya
What are the kingdoms? Protists, Plants, Fungi, and Animals
Prokaryotes One cell organisms that lack a nucleus
Which domains contain Prokaryotes? Bacteria and Archaea
Which domain is further broken down by kingdoms? Eukarya
Steps of Scientific Method Observation, Hypothesis, Experiment/Observations/Data gathering, Conclusion, Scientific Theory
Koch's Postulates Suspect must be present in every case, must be isolated and grown in lab, must be reproduces when pure culture is introduces to healthy host, recovered again from a infected host
Technology Application of scientific knowledge to the interests of humans.
Multicellular Organism that consist of more than one cell
Standard Error The value that describes how far off an average could be
Created by: PFlynn
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