Why does water tend to sink near arctic regions?

Sthis statement true or false? minerals present in nodules on the ocean floor are vacuumed from the ocean floor, and fuels are pumped from the ocean from huge platforms.

Needed fast 15 points the process of natural selection favors certain characteristics in organisms, while it selects against other characteristics. what would happen if there was zero variation between all of the organisms on earth? a.organisms would evolve to increase variety b.natural selection would operate faster c.less food would be available d.evolution through natural selection would not occur

In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d