Which particles have about the same mass? O A. Neutrons and protons
B. Electrons, neutrons, and protons
O C. Electrons and protons
O D. Electrons and neutrons

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled