What are hot spots caused by?
a. volcanoes
b. divergent plate boundaries
c. mantle plumes
d. subduction zones

Which of the following is an example of a tissue on the digestive system a.the stomach b.smooth muscle that lines the stomach c.nerve cells in the stomach d. enzyme molecules in the stomach

The table below shows the number of foot bones in some horse fossils.horse fossil recordhorse fossil number of foot bonesp 19q 17r 24s 13ancient horses had more bones in their foot then present-day horses. the present-day horse has 11 foot bones. what is the correct order of evolution of the horse starting from the youngest fossil? a. q p r s b. s r p q c. s q p r d. r p q s

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous