Would transition metals be in Metal, Nonmetal, or Metalloid?

After hydrogen and oxygen, witch element makes up almost all of the most common substance in your body

Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism