If anyone can help it would be awesome Food is digested and then delivered to body cells.
Which of these describes how the cells respond?
A The cells absorb the energy in food through
photosynthesis.
B The cells convert the food into nutrients
through fermentation.
C The cells use the food and oxygen to make
energy and release heat.
D The cells use the food to make heat energy
through anaerobic respiration.

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?