Which body system protects some of the internal organs, such as the heart and lungs, from physical injury?

What adaptations can prey use to avoid predation

What must be done to breed dogs for a partical trait

Prior to the mt. st. helens eruption on may 18, 1980, satellite and topographic views of the volcano were captured. based on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m? question 9 options: 600 m 400 m 750 m 500 m