Examlex
The respiratory system in insects consists of specialized air tubes called the ______________.
Mass Numbers
The total number of protons and neutrons in the nucleus of an atom, indicating its atomic mass.
Subatomic Particles
Particles smaller than atoms, including protons, neutrons, and electrons, which are the building blocks of atoms.
Bonding Behavior
The formation of a close personal relationship, especially between parents and their offspring, facilitated by hormonal and emotional factors.
Electrons
Subatomic particles with a negative electrical charge, found orbiting the nucleus of an atom.
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