¿Cuál de las siguientes tendencias se observa en el transcurso del tiempo durante la evolución de los humanos? a. Aumento del tamaño cerebral
b. Disminución del tamaño corporal
c. Reducción del número de dedos de los pies
d. Aumento del tamaño de los dientes molares y caninos

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

Gravitational force i believe

Plants take energy from the sunlight with the of chlorophyll so the plant starts the food chain. then an herbivore eats the plant and gets its energy.then a carnivore or a human eats the herbivore and gets its energy. : )

What subject are you on