Answer:
Pb has an atomic mass of 82. If an atom of that element has an atomic mass of 80, that atom is known as: an isotope.
Answer: It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.
Explanation:
Answer:
It is called the Chloroplast.
Explanation:
"In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle."
