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science quiz

study guide for activities 1-6 - 10/1

TermDefinition
antibiotic a chemical that helps bodies fight off infection by killing harmful bacteria
trait a specific version of a characteristic that varies from one individual to another
variation a difference in genes, traits, or behaviors among member of a population, which may cause differences in reproductive success
adaptation a heritable trait favored by natural selection
evolve to change heritable traits from one generation to the next
gene a specific sequence of DNA that determines one or more traits
natural selection survival or reproduction of different inherited traits in a population leading to changes in that population
evolution a change in the inherited characteristics of populations from one generation to the next
mutation a change in DNA of gene that may lead to a different trait
Charles Darwin's theory of natural selection pops of orgs with certain variations help them compete +, survive in their environment, live ++, and repro + than those who don't have the vars. The next gen will have the traits of that species with the var that survived. vars/traits cbe sel = adaption
example of natural selection theory giraffes w/ long + short necks. trees are tall. The giraf w/ long necks have a variation that allows them to reach tall trees, eat + and survive. Bc they survive they reproduce and pass on their traits. The next gen will have + giraffes with long necks.
what would happen to the population of a species due to natural selection? Which will survive a specific environment? For example: Bacteria Worms Forkbirds be able to determine this
Created by: erome
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