Chap 4 Evolution and genetics Flashcards
Give the levels of organizations
Organism (body), systems, organs, cells, DNA/Genes
What is natural selection
Survival of the fittest
What are homologous structures and what do they suggest
Structures in different organisms that may have different functions but are similarly arranged, suggesting a common ancestor
What is social dominance ?
Theory of how societies maintain group-based dominance
What are courtship display?
Set ofdisplay behaviorsin which an animal attempts to attract a mate and exhibit their desire tocopulate.
In what is symmetry involved?
Symmetry involved in attraction: Individuals choose symmetry even when they can’t detect differences
Name the three hypothesis of the evolution of the human brain ?
1) Ecological-intelligence hypothesis
2) Social-intelligence hypothesis
3) Cultural-intelligence hypothesis
Explain what is ecological-intelligence.
Individuals that were better at choosing the right food survived
Explain what is social-intelligence hypothesis
Individuals that had better qualities at communicating and cooperative survived.
Explain what is cultural-intelligence hypothesis
Individuals that were better at understanding our cultures survived.
Evolution has shaped human development through innate characteristics such as:
Infant reflexes
An interest in novelty
A desire to explore and manipulate objects
An impulse to play and fool around: allows to make mistakes, learn a problem solve
Basic cognitive skills
What are genes?
Building blocks for proteins
What is DNA?
Deoxyribonucleic Acid
double-helix of amino acids
What are chromosomes?
Structures of inherited genes
23 pairs
What are Fraternal/Dizygotic twins?
Result from release and fertilization of two ova
