This stadium can hold 100,000, or 1x10, people. the
number of atoms in a grain of iron is about 1x 1016,
would you need 1 x 10° or 1 x 10' stadiums to hold
the same number of people as the number of atoms in
a grain of iron? explain your answer,

Lucia is walking barefoot in her yard. she accidentally steps on a nail. how will her nervous system work to generate a reaction? arrange the eventschronologically.

Identify characteristics of energy from the sun. check all that apply. almost all of the energy on earth comes from the sun. energy from the sun is known as mechanical energy. the energy in fossil fuels originally came from the sun. plants convert the energy of sunlight into chemical energy.

Which enzyme is responsible for “unzipping" the dna by breaking the hydrogen bonds between the nucleotides?