Natural selection causes changes in populations of organisms, not individual organisms, because a. differential reproductive success caused by acquired behaviors is the most important mechanism of natural selection. b. differential reproductive success caused by genetic variation is necessary for the process of natural selection. c. organisms within sexually reproducing populations can only pass on genes that reduce their reproductive success. d. organisms within sexually reproducing populations all have the same genetic information and the same likelihood of survival.
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Biology, 22.06.2019 00:20, kimberly01262016
Apart of an ecosystem that can restrict the growth of a population is referred to as
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Biology, 22.06.2019 13:00, mimivenga
Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?
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Biology, 22.06.2019 13:00, awesomebutterfly
[34 points awarded to the best answer, use facts and/or data] 1.) what's the likelihood of thunderstorms occurring in the state of maryland? {this question is for a project for science, use facts and/or data and explain why . 34 points to the best answer]
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Biology, 22.06.2019 15:30, jennifercastillo1233
Por qué crees que los huevos con cáscara se llaman amnióticos?
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Natural selection causes changes in populations of organisms, not individual organisms, because a. d...
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