A population of arctic hares burrows into the snow for shelter. It is found
that the hares on the smaller side are able to burrow between rocks, as
well, providing extra protection from predators. Over time, the hare
population becomes smaller in size, shifting the normal distribution curve for
hare size.
What type of selection is this?
Answers: 2
Biology, 22.06.2019 03:00, makeithappen60
What causes darkening of the skin as melanin production increases
Answers: 1
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?
Answers: 1
Biology, 22.06.2019 17:00, TheVariableWhoLived
As the earth formed, the force of gravity increased due to increased mass. what effect did this increased gravity have on the forming planet?
Answers: 1
A population of arctic hares burrows into the snow for shelter. It is found
that the har...
that the har...
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