A scientist wants to look at the different ages of the ocean's surface. What kind of map should he use? Topographic map
Plate tectonic map
Isochron map
Geographic map

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.

Where substance is produced during cellular respiration