Selection sometimes favors the extreme phenotypes in a population. This would cause hybrid individuals to experience decreased fitness and likely lead to sexual selection within groups of similar phenotypes. Eventually this sort of evolutionary pressure may lead to Genetic Drift O Allopatric Speciation Sympatric Speciation O Stabilizing Selection

Human adult males generally have deeper voices than do adult females, which is the direct result of higher levels of testosterone causing the enlargement of the larynx. If one excludes the involvement of gender in the situation, then the pattern that is apparent in the fossil record is most similar to one that should be expected from what type of selection? directional selection stabilizing selection asexual selection disruptive/diversifying selection

Chargaffs DNA Data Base Compoeltion In Varlous Speclee (%) Species A T G Homo sapiens 31.0 31.5 19.1 18.4 Drosophila melanogaster 27.3 27.6 22.5 22.5 Zea mays 25.6 25.3 24.5 24.6 Neurospora crassa 23.0 23.3 27.1 26.6 Escherichia coli 24.6 24.3 25.5 25.6 Bacillus subtilis 28.4 29.0 21.0 21.6 The table above shows the amount of the 4 DNA nucleotides found in 6 different species. Another species has DNA that is 10% Adenine (A). What is the % of T, G, and C in the DNA of this species? You may copy and paste this sentence to help you answer clearly: The species is 10% A, 96 T, 96 G and 96 C. The species is 10% A, 10 % R, DELL F11 PrtScr F4 F5 F6 F7 F8 F9 F10 F12 In & 8. 9. 5 6. 7 9. E T Y *00 %S4

Choose the answer that best describes Allopatric Speciation. evolution that occurs when populations are separated by behavioral traits. All of these answers are true O evolution that occurs when populations are separated by geographic or physical barriers. O evolution that occurs when populations live in different habitats or exploit different niches.