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35 Cards in this Set

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  • Back
Biology
Science of life
Six Themes of Biology
Cell structure & function, Stability & homeostasis, Reproduction & inheritance, Evolution, Organisms' interdependence, Matter, energy, & organization
Cells
Small, highly organized, make up living things, containing specialized structures to carry out life processes
Differentiation
Process when cells of multicellular organism become different for special roles
Homeostasis
Stable level of internal conditions found in all living things
Reproduction
Process of producing offspring, during which hereditary information is transmitted
DNA
(Deoxyribonucleic acid) Large molecules in form of a membrane/loop that holds hereditary information
Gene
Short segment of DNA that contains instructions for development of a single trait of an organism
Sexual Reproduction
Hereditary information from 2 parts of a single organism/ 2 organisms of same species is combined
Asexual Reproduction
Hereditary information isn't combined from different organisms
Evolve
Changing of organisms over time
Evolution
Changes that organisms have made from their first existence to now
Natural Selection
Process considered the most important driving force in evolution; "Survival of the Fittest"
Ecology
Branch of biology studying organisms' interactions with one another & environment
Ecosystems
Environmental communities
Photosynthesis
Process by which plants & some unicellular organisms capture the sun's energy & change it to usable energy
Autotrophs
Organisms that obtain energy by making their own food; Use Water/Carbon Dioxide/Chemical processes for energy
Heterotrophs
Organisms that take in food for energy needs; Need to consume autotrophs/ heterotrophs for energy
Levels of Organization
Atom, Molecule, Organelle, Cell, Tissue, Organs, Organ System, Organism, Population, Community, Ecosystem, Biome, Biosphere
Atom
Smallest part of an element with properties of that element
Molecule
Two/more atoms together
Organelle
Part of a cell that carries out a specific job
Cell
Smallest part of a living thing
Tissue
Group of cells with a special job
Organs
Groups of tissues with a special job
Organ System
Groups of organs working together
Organism
Living thing
Population
Groups of organisms
Community
All populations living in an area
Ecosystem
Living & nonliving things in an area
Biome
Region on Earth with characteristic climate
Biosphere
Where living things are found (Earth)
6 Characteristics of Life
Homeostasis, Energy Use, Reproduction, Cells, Organization, Growth & Development
Observation
Conclusion made using the senses
Inference
A logical conclusion based on observations & previous knowledge