I believe skeletal system but im not 100% positive
<span> Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types.</span>
Answer:
electromagnetic radiation Transfer of energy by electromagnetic waves across space or through matter.
Answer:
the Answer is A
because organic compound is made up of living things
Genetics is the scientific study of genes and heredity—of how certain qualities or traits are passed from parents to offspring as a result of changes in DNA sequence. A gene is a segment of DNA that contains instructions for building one or more molecules that help the body work.