Put the steps of seafloor spreading in order from first to last.
Magma hardens
Magma pushes upward.
A crack forms
Rock moves outward.

Which of the following will not cause mass extinction? a. drastic change is weather b. geological change c. both a and b d. none of the above

Nucleic acid certain protein cell membranes certain carbohydrates

Which group of protists would be most likely to have cilia as adults and why? (1 point)the sporozoan protists would since they have to spread their spores around.the heterotrophic protists would since they use them to gather food.the parasitic protists would since they need to find other organisms to attack.the autotrophic protists would since they must move to find light.