Evolution Flashcards
Branch of biology that deals with the study of the history of life forms and of the evolutionary processes that produced the diversity of life on Earth.
Evolutionary bio
The slow gradual change in organisms over time
- Evolution –
After natural catastrophes, such as great floods and tectonic earthquakes which resulted to extinction of plants and animals, God created new living organisms with improved characteristics.
Theory of Catastrophi
–Azoologist, paleontologist, and an advocate of creationism.
GeorgeCuvier
• States that organisms evolved in response to the
change in their environment.
Lamarckism Theory
Lamarckism Theory is also
Theory of Acquired traits
Lamarckism Theory
• By
Jean Baptiste de Lamarck
Lamarckian theory is summarized into 3 ideas
• Principle of Need
• Principle of Use and Disuse – c
• Principle Of Inheritance Of Acquired trait
– change due to adaptation
Principle of Need
– change through selective use or disuse of
organs; traits are lost or acquired
Principle of Use and Disuse
–acquired or lost trait is then passed to the offspring
• Principle Of Inheritance Of Acquired traits
Individual whose traits most fit to
environment will be more likely to live and
reproduce.
• It is the nature that selects the survivor
(Survival of the fittest)
Theory of Natural Selection
Theory of Natural Selection who
Charles Darwin
3 Animals Darwin Studied:
Finch, Tortoise, and Iguana
developed theory of natural selection similar to Darwin.
Alfred Wallace
occurs through geographic isolation
Allopatric speciation
occurs through reproductive isolation
Sympatricspeciation
If the environment changes, natural selection may result to
adaptation and may give rise to new species
SPECIATION :
remain of organisms preserved in a sedimentary rock.
Fossil
Similar structure/ Different function
HOMOLOGOUS STRUCTURE
Different structure/ Same function
ANALOGOUS
earliest development stage of an organism
Embryo
Similarities in embryo suggest that
Similarities in embryo suggest that all vertebrates are related.
study of organisms’ distribution
Biogeography
existence of different varieties within a species.
mainland.
- Variation - refers to
Living things consists of same biomolecules such as DNA, ATP, amino acids, and enzymes.
MOLECULAR BIOLOGY genitics
Organisms that are closely related have more DNA and proteins in common than those
that are more distantly related.
MOLECULAR BIOLOGY genetic
Evolution is a ? occurring in a ? of organism over ?
Evolution is a genetic change occurring in a population of organism over many generation
Mating is selective and not random
Nonrandom mating
Any change in genetic sequence that causes change in traits of an organism and may be inherited by offspring.
Mutation –
the movement of genes from one population to another.
Gene Flow -
moving out
Immigration:
Moving in
:
E migration
organism with traits most fit to environment will survive, live, and reproduce.
Natural Selection –
refers to changes in the gene pool (all genes in population) fr
Genetic drift –