The fossil image is of a trilobite. trilobites lived in the ancient seas and the fossil was found in the sea floor. compare the fossil to the four modern-day animals also pictured. based on physical evidence, the trilobite is probably a direct ancestor of what animal? a) locust b) pillbug c) scallop d) roundworm

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?

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?

La glucosa es el nutriente mas utilizado por las celulas en la respiracion celular en esta ocurre 4 fenomenos cuales son