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22 Cards in this Set
- Front
- Back
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Biosphere
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All the environments on earth that support life
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Emergent properties
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Properties that emerge as complexity increases
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Ecosystem
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All living organisms in a particular area and all the non-living components of the environment with which life interacts, such as water and light
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Communities
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all organisms in the "pool" (iguanas, crabs, seaweed, bacteria)
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Populations
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Groups of interacting individuals of one species
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Organelles
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Organelles are functional components of cells such as the nucleus which houses the DNA
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2 main processes of an ecosystem
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recycling of chemical nutrients
flow of energy |
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Prokaryotic cell
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smaller
simpler structure DNA concentrated in nucleoid region lacks most organelles |
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Eucaryotic cell
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larger
more complex structure nucleus enclosed by membrane contains many types of organelles |
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life's 3 domains
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Eukarya
Archaea Bacteria |
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Darwin's 2 observations
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1. overproduction and competition
2. individual variation Conclusion: unequal reproductive success |
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Life's seven properties
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order
regulation growth and development energy processing response to the environment reproduction evolution |
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Nucleus
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houses DNA
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Eukarya's three kingdoms
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Planae, Fungi, Animalia + protists
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Two main ideas in the "On the origin of species"
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descent with modification
natural selection |
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The scientific method - steps (loose)
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Observation - question - hypothesis - prediction - experiment (rinse and repeat)
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Element
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substance that cannot be further broken down into other substances through a chemical reaction
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Which 4 elements make up 96% of our bodies?
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Oxygen (65%), Carbon (18.5), Hydrogen (9.5%), Nitrogen (3.3%)
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Atomic number
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The number of protons in an atom which determines which element it is
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Atomic mass
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a measure of the amount of material in an object. Electron has negligible mass, so it is excluded from this calculation
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Mass number
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the sum of the number of protons and neutrons in the nucleus
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Isotopes
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forms of an element that differ in mass - they have different numbers of protons and electrons but different number of neutrons
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