Fossil evidence indicates that was the first known living organism.
cyanobacteria
archaebacteria
bacteria
snails

For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, a + b → ab. single-displacement double-displacement synthesis decomposition

Which change in temperature is the smallest? a change of 1 thomson degree a change of 1 kelvin degree a change of 1 fahrenheit degree a change of 1 celsius degree

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom