When the nervous system stimulates the biceps muscle, it contracts to flex the elbow joint. Based on this information, what can be concluded about the extension of the elbow joint?
A. The elbow extends when the biceps is stimulated in a different way.
B. The elbow extends the biceps relaxes and other muscles are stimulated.
C. The elbow extends when the biceps relaxes, and without other muscle activity.
D. The elbow extends when the biceps and other muscles are stimulated.

What are some aquatic organisms that live in cold water temperatures?

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.

Types of scientific inquiry that biologist engage in that cannot be completely controlled