Which of the three major types of biomaterials would you use for the femoral stem?

Most scientific questions are based on opinions. hypotheses. observations. experimental data.

For each of the following, decide whether the statement describes photosynthesis, cellular respiration, or both. releases energy in the form of atp. stores energy in glucose molecules. performed by producers. performed by consumers.

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?