The introduction of smallpox to the Americas by Europeans in the colonial era devastated populations of Native Americans. However, now very few people are vaccinated against the smallpox virus. Why?

What is the correct term for an area of rotating currents in an ocean? when ocean currents combine, they create an area of rotating currents called an

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?