What part of the body protects from foreign substances

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

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

Albinism is an inherited genetic disorder. explain what it is meant by inherited genetic disorder