They are the basic units of structure because they are the smallest unit of life. you cant go any further. also they make up every living thing from prokaryote to eukaryote.
Answer:
The correct option is A.
They have cheaper disposal fees.
Earths geological plates move because of the intense heat in the earths core
Iron is a key component of hemoglobin. Hemoglobin the the protein responsible for transporting oxygen uses iron to bond oxygen. Additionally Hemoglobin is a key component of RBC (erythrocytes)... If iron is deficit the body is not able to produce red blood cells and it can result in iron deficient anemia.
the answer is A changes in abiotic factors i know it is on plato that is hard bro its the post test.
