What is evolution? what is evolution? a rare event a process that occurs as a result of differences in reproductive fitness a process that is constantly occurring at the same rate in all organisms a process that occurred only in the past?

2. what process do mrna and trna work together to complete? (3 points)

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?

How far away is the nearest black hole from earth?