Bio 150 Final keck UTK Completely Solved!

Evolution - ANSWER populations of organisms and their cellular components have changed over time through both selective and non-selective evolutionary processes structure and function - ANSWER all living systems are made of structural components whose arrangement determines the function of the systems information flow and storage - ANSWER info and signals are used within and among organisms to direct their functioning transformations of flow and energy - ANSWER all living things use, acquire, and release matter and energy for cellular/organismal functioning systems - ANSWER living systems are interconnected and interact and influence each other on multiple levels how are bacteria, archaea, and eukaryotes related - ANSWER related by a last universal common ancestors LUCA 7 criteria for life - ANSWER 1. organization: one or more cells 2. Metabolism: energy and material flow 3. Growth: accumulation 4. Homeostasis: maintaining a relatively constant state internally 5. Response to stimuli: Altering actions to maintain homeostasis 6. Adaptation: Change through time 7. Reproduction: Production of offspring similar to parents earth formed - ANSWER 4.5 billion years ago crust solidified - ANSWER 4 billion years ago we find the oldest fossils or microorganisms - ANSWER 3.5 billion years ago prokaryotes dominant between - ANSWER 3.5 - 2 billion years ago protobionts - ANSWER -precursor of very early life -resemble very simple cells -microspheres composed of inorganic and organic molecules trapped inside of a lipid bilayer membrane -microspheres form spontaneously and can replace by pinching off new spheres