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science 7-1 and 7-2

science notecards

TermDefinition
homologous structures between a pair of structures, or genes, due to shared ancestors ***similar body parts
trait a genetically determined characteristic
over population the presence of too many individuals in an area for the avaliable resources.
inherited variation each individual has its own traits
struggle to survive "survival of the fittest"
succsesful reproduction the passing of genes onto the next generation in a way that they too can pass on those generations
galapogous islands islands with finches and equador
adaptation the ability of a species to survive in a particular ecoligical niche, especially because of alterations of form or behavior brought about through natural selection. *** survive and reproduce
finches small songbird: a small songbird with a short broad beek for cracking seeds and colorful alumage, especially in males.
gradulism -charles darwin is the creator of gradualism. -the process is very slow since it requires countless generations for small changes. -he delivered evolution happens slowly over a long period of time.
natural selection the process in nature which individuals with inherited characteristics well suited to the environment leave more offspring on average than do others
puncurated equilidria evolution tends to be characterized by long periods of virtual standstill punctuated by episodes of very fast development of new forms.
naturalist scientist who studies nature
selective breeding choose best traits or desired traits
HMS beagle a chrokee class 10-gun brig-doop of the royal navy
evolution *change over time -change in the pool of a population from generation to generation by such processes as mutation, natural selection,and genetic drift
sedimentary rock rock that has formed through the deposition and solidifacation of sediment, especially sediment transported by water.
free card for bingo
mammals any vertedrate of the class mammalia, having the body more or less covered with hair, nourishing the young with milk from the mammary glands, and with the exception of the egg-laying monotremes, giving birth to live young
anatomical structures a particular complex aratomical part of living thing.
vertigial structures structures that were thought to be used before by the ancestors of animals *** body parts that have no functions
Created by: kiddo
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