Astronomers use the EM spectrum, Physicists speculate about it, yet the practical study of it falls to the Mechanical Engineers: your answer = mechanical engineering.
Psychology
The scince that deals with the study of human beings is called "anthropology" and i 100% sure this is correct because my mother is a science teacher =)
it is called microbiology
theory
The scientific study of heredity involves the genes and this field is called genetics.
In the field of physics, that rather depends on the frequency. Optics in the case of light waves; Acoustics in the case of audio (pressure/velocity) waves; radio-physics in the case of radio waves; and Geophysics in the case of seismic waves. I presume you do not inquire after Sting Rays.
The scientific study of sound is called acoustics.Related Information:The scientific study of sound perception is called Psychoacoustics.The scientific study of hearing, balance, and related disorders is called Audiology.
The study of sleep is called polysomnography.
The scientific study of plants is called botany. People who study botany are called botanists.
The scientific study of mountains is called orology. This field of study focuses on the formation, structure, and geological processes associated with mountains.
The scientific study of heredity is called genetics. It involves studying how traits are passed down from one generation to the next and the role of genes in determining an organism's characteristics.
The scientific study of minerals is called mineralogy. It involves the identification, classification, and study of minerals' properties, distribution, and formation processes in the Earth's crust.
Manuology
toxicology
It is called Ornithology
Reproduction
sphragistics