___slides inward during muscle contraction.
Topics:Cell Cycle; Cancer Skin Structure and Growth Tongue and Skin Understanding Psychology Nervous System Cell Theory Oral Hygiene Biodiversity Health - Nutrition Respiratory Acidosis Pathophysiology_Endocrine Virus, Bacteria, Immunity Intravenous Fluid Therapy Effects of Exercise on the Musculoskeletal System Life Cycle - Bee Bone
Other quiz: Human Body Systems
What is the main function of the respiratory system?
A. take in oxygen and exhale waste like carbon dioxide
B. move nutrients throughout the body
C. take in carbon dioxide and exhale oxygen