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group of organisms from a cladogram consisting of ancestor and all of its descendants. A single 'branch' on the 'tree of life'
originate from same organism
process by which unrelated or distantly related organisms evolve similar body forms, coloration, organs, or adaptations
favors traits at one extreme
both extremes are favored
process by which an interbreeding population or species diverges into one or more descendent species resulting in a once similar population to become more and more dissimiliar
when organisms leave a population
change in the allele frequencies in a population over a time due to natural selection, mutations, gene flow, and genetic drift
capability of producing offspring
when a few individuals become isolated from a population
individuals from one group moving into another group making certain genes more frequent in the population
ability for an organism to live, reproduce, and thrive
change by which an organism or species becomes better suited to its environment
the process by which organisms diversify rapidly into a multitude of new forms particularly when a change in the environment makes new resources available and opens new niches
alternative form of a gene located at a specific position on a chromosome
similar functions, but not from the same evolutionary origins
ability of bacteria or other microbes to resist effects of an antibiotic
when you choose the desirable traits to reproduce
sudden reduction in population size due to a catastrophic event or change in the environment
diagram used to show relations among organisms
evolutionary process by which new biological species arise
group of organisms capable of interbreeding and producing fertile offspring
genetic diversity decreases as the middle is favored
when a living organism cannot reproduce
speciation when organisms are still living in the same region
genetic diversity in a species
genetically determined structures that lost most ancestral function
In a small population some individuals just by chance leave behind a few more descendants than other individuals. It always reduces diversity
all alleles for a locus in all individuals of a population
similarities in physiological aspects in differing species due to a common ancestor
offspring resulting from the interbreeding between two animals/plants of differing species, sterile.
When organisms move into a population
Geographical Reproductive Gametic Temporal Behavioral Mechanical
creates competition because not enough for every organism. (Least fit dies)
Change in nucleotide sequence in a genome
Gradual, non-random process by which biological traits becomes either more or less common in a population
group to which an organism does not identify
branching diagram showing the inferred evolutionary relationships among species
Group of individuals of the same species that live in the same area and interbreed producing fertile offspring.
systems that are considered to have possibly been the precursors to prokaryotic cells.
mating where choice of partners is not based on genotype
When species don’t/can’t reproduce together
eukaryotic cells evolve from prokaryotic cells.
some individuals outreproduce other od a population because they’re better at securing mates.
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Big Idea #1 Review Game Quiz
Created May 15, 2013 in
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