Which of the following elements has the highest atomic mass? helium: 2 protons and 2 neutrons nitrogen: 7 protons and 7 neutrons oxygen: 8 protons and 8 neutrons hydrogen: 1 proton and no neutrons

Below, the levels of organization in a multicellular organism are shown from least to most complex. which level of organization can be described as several different types of tissues working together to perform a common task?

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?

Which term describes a normal value for something in the body? a.homeostasis b.set point c.feedback loop d.integration center