Evolution Flashcards
What is taxonomy?
Classifying relationships with organisms
What is the order of classification?
Domain Kingdom Phylum Class Order Family Genus Species
What is an adaptation?
Structural, Behavioral, physiological process that helps organisms survive and reproduce in an environment
What is a variation?
Visible/individual differences between the same species, advantages and disadvantages
What is a mutation?
Changes in genetic material of an organism
What is natural selection?
Process that results when chracteritistxs of organisms change, reproduction pass on traits to next gen
What are the natural selection 5 key ideas?
- Overproduction
- Competition
- Variation
- Origin of species
- Survival of the fittest
What did Lamar k believe?
Acquired characteristics
What did Darwin believe?
Natural selection
What are the 4 evidences of evolution?
- fossils
- biochemistry
- embryology
- biogeography
What does analogous mean?
No common ancestors,
Similar function, different structure
What does homologist mean?
Common ancestors,, similar structures, different function
What is speciation?
Formation of a new species, can occur when two populations are prevented from interbreeding
What does allopatric mean?
Physical barrier sol épatâtes population, natural selection occurs
What does sympatric mean?
1 pop splits into distinct breeding groups,
What are the 2 types of speciation?
Geographical isolation and reproductive isolation
What is geographical isolation?
Physical barrier
What is reproductive isolation?
Organisms no longer reproduce
What are the two paces of evolution?
Gradualism- small changes over time
Punctuated equilibrium- no change, sudden ch ange
Convergent?
Coming from different ancestors into similar characteristics—- homologist
Divergent?
Coming from same ancestors into dif species—- analogist
