If an electrically neutral atom contains 16 protons, it must also contains 16 neutrons true or false

Describe the primary and secondary immune response in terms of speed and number of antibodies produced?

What is the function of nucleic acids

Land conservation is a worldwide priority. there are several methods to prevent the loss of land due to a variety of reasons. which method is not a way to conserve land? a) sea walls b) rainwater harvesting c) limits on clear cuts of forests d) cut and burn methods of clearing land