Which organisms were the earliest oxygen-producing life-forms? earth worms

cyanobacteria

mold

Euglena

Rank the three variables in terms of how strongly they affect the "species" composition of the bacterial communities. place the variable with the weakest effect on the left and the variable with the strongest effect on the right.

Explain nonnuclear inheritance. ~ ap biology

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?