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HBiology Chapter 1

First Chapter, Fall Semester 2009

QuestionAnswer
What are emergent properties? properties the emerge at different levels of organization
Biosphere all the environments on Earth that support life
Ecosystem all of the living and nonliving components in a particular environment
Community all of the organisms in an ecosystem
Population all of the individuals of a species in a specified area
Organism an individual living thing
Organ system several organs that work together performing a specific function
organs provide specific functions for the organism
tissue made of individual groups of cells
cell living entities distinguished from their environment by a membrane,
organelles membrane bound structures with specific functions
molecule cluster of atoms
producers provide food, autotrophic
consumer heterotrophic, eat other organisms or plants
to be successful, and organism must recycle chemicals, move energy through ecosystem
system combination of structures
prokaryotic cells small, simple, no nucleus, bacteria, membrane bound DNA
Eukaryotic cells means "true nucleus", organelles seperated by membranes
what is DNA deoxyribose nucleic acid, chemical structure creates function
gene a discrete unit of DNA
Common properties of living things 1) order complex organization 2) regulation, an ability to maintain a consistent internal environment 3) growth and development, controlled by DNA 4) energy processing, making it useful 5) response to the environment, 6) reproduction, 7) adaptation
Three domains Bacteria, Eukarya, Archaea
Created by: sheetsm
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