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17 Cards in this Set

  • Front
  • Back
Properties of Life
1. Growth, development, reproduction
2.Ordered complexity
3.Evolutionary adaptation
4. Sensitivity
5. Homeostasis
6.Energy Utilization
7.Cellular organization
The Biological Hierarchy

(Cellular Level)
cell, organelle, macromolecule, molecule, atom. (COMMA)
Then Biological Hierarchy

(Organismal Level)
organism, organ system, organ, tissue
The Biological Hierarchy

(Population Level)
community, species, population

(biosphere, ecosystem)
cell
the smallest unit of life
atom
smallest particle of an element
The Scientific Method
1. observation
2. hypothesis
3. experiment
4. conclusions
Hypothesis
suggested explanations that accounts for observations
Experiment
test of hypothesis

trying to eliminate one or more competing hypotheses

establish controls by holding all variavbles but one constant

collect data
Theory
body of interconnected consepts, supported by scientific reasoning and experimental evidence

evidence supports a theory
evolution
the theory that modern organisms descended, with modifications from pre-existing life forms.
Cell Wall
animals have cell walls not plants, fungi, etc.
Cell Membrane
all cells have a cell membrane
Charles Darwin
- 1809-1882
-earth about 6000 years old
-voyage on the Beagle
-1842 first draft but not published
-evolution manuscript from Alfred Wallace
-The Origin of Species by Means of Natural Selection published in 1859
The Origin of Species by Means of Natural Selection
1. Descent with modification- different species living today descended from ancestral species

2.Natural Selection-is a mechanism for evolution
Natural Selection
the unequal survival and reproduction of offspring due to environmental forces resulting in the presence of favorable inherited adaptations.
Inherited Variation
variation is inherited