In 1858 Rudolph Virchow noted that cells couod only arise from?

the median of the data is 4.5.

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.

not sure if this is what you'r looking for eubacteria and archaebacteria

silt loam

hope this