I think you just answered your question. They encourage adolescents to eat calcium-rich foods because it aids in bone formation, like you said.
The boundary separates them<span />
Answer:
Three examples of fossil fuels are:
1). Petroleum
2). Coal
3). Natural gas
<span>Messenger RNA (mRNA) molecules are long strands of RNA nucleotides that directribosomes to make proteins. They travel from the nucleus to the ribosome. Ribosomal RNA (rRNA) molecules make up part of the ribosomes of the cell in the cytoplasm. Transfer RNA (tRNA) molecules transport amino acids to the ribosomes.</span>