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Biology
Scientific study of life
Order
Ordered structure typifies life
Reproduction
Organisms reproduce their own kind
Growth and development
Inherited DNA controls growth and development
Energy processing
Organisms use chemical energy to fuel activities and chemical reactions
Response to the environment
All organisms respond to environmental stimuli
Regulation
Mechanism regulate an organism's internal environment to sustain life
Evolutionary adaptation
Adaptations evolve over many generations to better suit organisms to their environment and have greater success
Biosphere
Every environment on Earth that sustains life
Ecosystem
All organisms in a particular area as well as the physical elements like rocks and dirt
Community
All the organisms within an ecosystem
Population
All the individuals of a particular species in a specific area
Organism
Any individual living thing
Organ system
Several organs that cooperate to perform a specific function
Organ
Made up of several tissues
Tissues
Made up of similar cells
Cell
Fundamental unit of life
Organelle
Membrane-enclosed structure within a cell
Molecule
Cluster of atoms held together by chemical bonds
Emergent properties
The properties that emerge at each level of life's hierarchy
Prokaryotic cells
First to evolve
Less complex
Bacteria cells
Eukaryotic cells
More complex, larger
Animals, plants, fungi, protists
Have organelles including nucleus for DNA
Systems biology
Construct models for whole systems based on the interaction among different parts
Genes
Units of inheritance that transmit genetic material from parents to offspring
Domains
A way of organizing different life forms into three categories-domains
Bacteria
Prokaryotes
Diverse array of bacteria
Archaea
Prokaryotes
Live in extreme environments
Eukarya
Eukaryotes
Nucleus and other internal structures/ organelles
Evolution
Species today are descended from ancient species
Core theme of biology
Natural selection
Those better suited to the environment survive and reproduce which can change the species as a whole
Inductive reasoning
Generalizations are developed from a bunch of smaller specific observations
Hypothesis
Proposed explanation for a series of observations
Deductive reasoning
Ways to test hypotheses
General ideas are tested by taking specifics that would fit in the generalization and see if they support the hypothesis
Theory
Broader than a hypothesis
Explain a bunch of observations and have a lot of evidence behind them
Controlled experiment
Designed to compare an experiment group with a control group
Technology
Goal is to apply science for a specific purpose
Creates cycle
: scientists use new tech in research whic leads to new tech...
Author
cstewart6
ID
126521
Card Set
Bio 1.txt
Description
bio chapter 1
Updated
2012-01-08T07:07:07Z
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