The north american plate is moving away from the eurasian plate, forming the mid-atlantic ridge. iceland offers a natural laboratory to scientists studying plate tectonics. using what you know about plate tectonics, predict what boundary zone is occurring and two resulting features from the choices below. convergent boundary zone; long, narrow trenches; crustal deformationsconvergent boundary zone; submarine mountain ranges; mid-ocean ridges divergent boundary zone; volcanic activity; fissure zones transform boundary zone; earthquakes; fault lines

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

(amoeba sisters video recap: pedigrees and need