Fter a house fire, stacey went to the hospital with a third degree burn. this type of burn has symptoms of leathery skin with lack of pain due to the nerve endings being destroyed. what was the deepest layer of skin affected

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

What is the correct term for an area of rotating currents in an ocean? when ocean currents combine, they create an area of rotating currents called an

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?