Ablo and johanna have to do a yearlong study for their biology course. after some discussion, they decide to try comparing their dogs and the diet that they feed them. each has a dog from the pound, and both dogs are less than one year old. pablo feeds his shepherd-mix dog a special diet of wet and dry foods from the local vet, while johanna uses generic dry kibble from the supermarket for her bulldog. they want to see which diet results in bigger, healthier, faster-growing dogs.
when they write up their initial proposal, the instructor will probably

Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geographical equipment to analyze the composition of rocks

Which organism can most likely be classifild as domain bateria

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?