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FINAL
bio 1010 final
13
Biology
Undergraduate 1
05/04/2011

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Cards

Term
Thomas Malthus
Definition
Said that human population is too large and problems will occur. (Disease, hunger, war)
Term
Galapagos Islands
Definition
island version of South Am, where Darwin discovered finches
Term
HMS Beagle
Definition
The ship Darwin sailed on as a naturalist
Term
Finches
Definition
different beaks according to their habitats; established first 'natural selection' theory
Term
Wallace
Definition
co writer of 'The Origin of Species'
Term
Natural Selection
Definition

1. Parents produce too many offspring

2. Offspring genetically vary

3. Environment cannot suppor them all

4. Those with favorable traits survive

Term
Alleles
Definition
Different versions of the same gene (blood type, mid-digit hair)
Term
Phenotype
Definition
Expression of the allel (seen)...hair color, height, build
Term
Directional Selection
Definition
favors one extreme
Term
Disruptive Selection
Definition
favors both extremes
Term
Stabilizing Selection
Definition
Favors intermediate
Term
Balanced Polymorphism
Definition
The idea that having an allel that could kill you could help prevent other diseases (sickle cell anemia, malaria)
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