Alex does an experiment to see if mice grow faster when given different food sources. he has two groups of mice. one group he feeds food a, and the other group he feeds food
b.
after 6 weeks, there is no difference in the growth rates of the two groups. however, he notices that the mice being fed food b have thicker fur.
what question could he ask next?
a. what part of food b is making the mouse fur become thicker?
b. which mouse was the prettiest?
c. would the mice prefer food c?

If vegetable oil is made out of veggies, then what is baby oil made out of?

Agenus is a taxonomic grouping that identifies a collection of species. when a scientist discovers a new species, how is this species assigned to a genus

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?