Which biological process helps detect changes in the environment and respond? While walking in your backyard barefoot, you step on a thorn from a rose plant. As a result, you immediately cry out in pain. The biological characteristic that you just demonstrated is .

The response is the basis for vaccination. primary secondary tertiary none of the above

How does the nervous system affect the excretory system?

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