Select your answer:
Topics:
Blood Formation and Clotting Effect of Exercise on Cardio Respiratory System & Muscular Reproductive System Vocabulary Vitamins Ecology Health issue related to immune system Food System & Nutrients Oxygenation Blood and Hematology Benefits of Physical Activity Nail Protein Synthesis Enzymes Mouth - Stomach Health Issues Related to Digesting System and Eating Habits HNBS InternOther quiz:
Respiratory › ViewWhich of the following describes a diaphragm?
A. Primary muscle used in respiration, which is the process of breathing.
B. Carry oxygen rich air into the lungs and carry carbon dioxide rich air out of the lungs
C. Area that connects the throat to the windpipe (trachea).
D. Serves as secondary external opening for the respiratory tract
Ecology › View
Horse ancestors had individual toes/paws. Why don’t we see horses with individual toes/paws anymore?
A. It isn’t an advantage
B. It was too helpful
C. It helped them run faster