Short determine approximately how
much total energy is lost from a three-step food
chain if 1000 calories enter at the autotroph level.

The proton has a positive charge while the neutron has no charge they both make up the nucleus of the atom while the elections have a negative charge and surround the nucleus of the atom. the protons and electrons are used to calculate the atom's mass whereas the neutrons don't affect the mass

Streaks on the face of wave rock

Probably a mushroom or a tomato plant

The answer on edgenuity is b