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Biology 12 Online
OpenStudy (anonymous):

+1 FAN +1 MEDAL +1 COOKIE !!! ALL TRUE OR FALSE QUESTIONS Will only get fanned and metaled and cookied if answered all correctly (: 1: Homology is a similarity of characteristics between organisms even when the organisms do not share a common ancestor. True or False 2. A species may become extinct over just one geographical range or throughout the entire world. True or False 3. Through natural selection, environmental pressures can alter the range of traits observed in a species over time True or False

OpenStudy (anonymous):

@e.mccormick

OpenStudy (anonymous):

In the context of biology, homology is the existence of shared ancestry between a pair of structures, or genes, in different species.[1] A common example of homologous structures in evolutionary biology are the wings of bats and the arms of primates.[1] Evolutionary theory explains the existence of homologous structures adapted to different purposes as the result of descent with modification from a common ancestor. In the context of sexual differentiation—the process of development of the differences between males and females from an undifferentiated fertilized egg—the male and female organs are homologous if they develop from the same embryonic tissue.[2] A typical example is the ovaries of female humans and the testicles of male humans.[2] Wikipedia

OpenStudy (anonymous):

so whats #1?

OpenStudy (praetorian.10):

1: Homology is a similarity of characteristics between organisms even when the organisms do not share a common ancestor. Definition: "In the context of biology, homology is the existence of shared ancestry between a pair of structures, or genes, in different species. A common example of homologous structures in evolutionary biology are the wings of bats and the arms of primates." 2. A species may become extinct over just one geographical range or throughout the entire world. Well yes it can become extinct in that locale but no its not extinct until its legit gone 3. Through natural selection, environmental pressures can alter the range of traits observed in a species over time Uhh heck yeah, environmental pressures are the driving force for adaptation

OpenStudy (praetorian.10):

Make sense?

OpenStudy (praetorian.10):

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