How do humans to improve the phosphorus cycle?

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above

Identify the composition of oceanic and continental crystal rocks.in a model of earth’s interior,where would these rocks appear?

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass