Answer to Question 1ANS: A
The USS Stewart was the first vessel to make a continuous profile of the ocean. They had an updated
version of the Iceberg Detector and Echo Depth Sounder, a device invented after the sinking of the
Titanic. Information can be found in the section Ocean Floor Is Mapped by Bathymetry.
Answer to Question 2ANS: C
There is a prevalence of active margins in the Pacific. These are areas associated with converging
plates and are characterized by high earthquake and volcanic activity. Recall the Pacific Ring of Fire
mentioned in Chapter 3. Information can be found in the section Continental Margins May Be Active
or Passive
The discovery of aquaporins, water channels made of a transmembrane protein.
Manta ray in the open ocean
Head shot, showing convex profile
The Movius line separates regions of the world where Acheulean hand axes were made from regions wher
Schematic drawing of initial/terminal (I/T) lymph vessel.
Observed global land and ocean surface temperature anomalies since 1850