Exam 1

Question 1

what is marine biology

Answer 1

study of the organisms that live in the sea

Question 2

what are the most important events in the history of marine biology

Answer 2

-challenger expedition (1872-1876)
-marine labs (plymouth england and woods hole MA)

Question 3

what are the commonly used tools in marine biology study

Answer 3

-remote sensing
-sonar
-scuba diving
-rovs
-research vessels
-underwater research stations

Question 4

what is the theory of plate tectonics

Answer 4

the earth’s surface is covered by a series of lithospheric plates

Question 5

pangaea

Answer 5

all continents had been joined in a single supercontinent

Question 6

continental drift

Answer 6

proposed in 1912 by Alfred Wegner

Question 7

mid ocean ridge vs trench

Answer 7

the ocean floors are constantly moving, spreading in the center and sinking at the edges and being regenerated

Question 8

age of the ocean seafloor

Answer 8

older than the mid atlantic ridge

Question 9

what are the geological provinces of the ocean/where are they/how are they defined

Question 10

continental margins

Answer 10

boundaries between continental and oceanic crust

Question 11

continental shelf, shelf break, continental slope, continental rise

Answer 11

shelf- most landward, most biodiverse
slope- edge of a continent, begins at shelf break and extends to deep sea floor
rise- most seaward, formed by sediments pushed down from shelf and slope
break- shelf ends

Question 12

deep ocean basins (names, size, depth)

Answer 12

abyssal plain- 4000m

Question 13

mid ocean ridge and hydrothermal vent