A. movement of air into and out of the lungs
Answer:
Desert tortoises are native to the American Southwest and these reptiles are completely herbivorous. Their diet includes mostly desert grasses, leafy plants and flowers. Some people keep these tortoises as pets and many make the mistake of indiscriminately feeding them store-bought produce. While store-bought produce can be part of a desert tortoise's diet, it should be limited to dark leafy greens that are high in fiber -- such as kale, collard greens, spinach and parsley.
Explanation:
hope this helps
Ribosomal RNA (rRNA) associates with a set of proteins to form ribosomes. These complex structures, which physically move along an mRNA molecule, catalyze the assembly of amino acids into protein chains. They also bind tRNAs and various accessory molecules necessary for protein synthesis.