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Bio chapter 1

Intro to biology

TermDefinition
Biology the study of life
Principle 1 of the features of life Cells are the smallest unit of life, New cells come from preexisting cells Cell theory is the foundation of life
Principle 2 of the features of life Living organisms uses energy
Principle 3 of the features of life Living organisms interact with their environment
Principle 4 of the features of life Living organisms maintains homeostasis
Principle 5 of the features of life DNA provides a blueprint
Principle 6 of the features of life population of organisms evolve from one generation to the next (evolution)
Principle 7 of the features of life Structure determines functions
Principle 8 of the features of life New properties of life emerge from interactions
Principle 9 of the features of life Biology is an experimental science
Principle 10 of the features of life Biology is a quantitative science
Principle 11 of the features of life Modeling and simulations are used to convey ideas
Principle 12 of the features of life Biology affects our society
The order of organization of life atoms, molecules, macromolecules, cells, tissues, organ, organ system, organism, population, community, ecosystem, biosphere
Population same species, but the whole group
Ecosystem includes non living things (water, rocks, dirt)
biosphere Earth
Vertical descent with mutation Most common, Involves transferring of genetic info from parents to offspring, natural selection
Horizontal gene transfer Distinct process of exchanging genetic info, gains genetic material w/o being an offspring.
taxonomy the grouping of species based on common ancestry
3 domains in life Bacteria, Archaea, Eukarya
Bacteria unicellular prokaryote
Archaea Unicellular prokaryote
Eukarya Unicellular and multicellular eukaryotes
Hypothesis a proposed explanation that must be testable and falsifiable
Theory a broad explanation that is backed up by a lot a lot of evidence, viewed as knowledge
Discovery-based science starts with collection and analyzing of data, no preconceived hypothesis
Scientific method steps observation, define a scientific question, form a hypothesis, make a prediction, create a experiment, collect data, analyze data, make a conclusion
Created by: BananaBread12
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