Quiz Ch. I

Results ReporterOut of 12 questions, you answered 12 correctly, for a final grade of 100%.
12 correct (100%)
0 incorrect (0%)
0 unanswered (0%)
Your Results:
The correct answer for each question is indicated by a .
1
CORRECT
Ancient people often had knowledge of which of the following?
A)
edible shellfish
B)
migrations of whales
C)
giant squid
D)
life in the ocean depths
2
CORRECT
An oceanographer might study which of the following?
A)
heat tolerance of coastal barnacles
B)
the influence of the Loop Current on seasonal growth of open-sea algae
C)
yearly oxygen production by salt marsh grasses
D)
how mole crabs burrow in sand.
3
CORRECT
The United States Exploring Expedition was one of the first to conduct extensive collecting in which area?
A)
the Mediterranean Sea
B)
the greatest depths of the ocean
C)
the South Pacific
D)
the northwestern coasts of North America
4
CORRECT
An example of an underwater robot could be which of the following?
A)
ROV
B)
critter cam
C)
satellite
D)
passive sonar system
5
CORRECT
Which is true of scuba gear?
A)
It was invented as part of the war effort during World War II.
B)
The inventor was a marine biologist stationed at Woods Hole.
C)
It uses compressed air.
D)
It can be used safely to depths of up to 100 m (300 feet).
6
CORRECT
Which of the following could be a valid scientific hypothesis?
A)
Morays find their prey primarily by following chemical cues.
B)
Dolphins communicate by using brain waves.
C)
It is immoral to keep dolphins in captivity.
D)
Dogs are superior in regard to seals.
7
CORRECT
A swimmer sees a large blue jellyfish nearby. Jellyfishes are known to sting, so the swimmer moves away. The swimmer did which of the following?
A)
used inductive reasoning
B)
used deductive reasoning
C)
constructed a theory
D)
tested a hypothesis
8
CORRECT
A scientific theory has which of the following properties?
A)
It agrees with available evidence.
B)
It cannot be rejected.
C)
It has been absolutely proven.
D)
It does not need to be altered in the light of new evidence.
9
CORRECT
New technology, for the first time, allows scientists to observe marine mammals in which situation?
A)
in captivity
B)
from the surface
C)
from stranded or dead animals
D)
underwater in the open sea
10
CORRECT
A marine biologist wishes to test the hypothesis that heavy grazing by snails causes the alga Ulva to stay short rather than grow upright. Which of the following variables could be manipulated successfully at the seashore to test this hypothesis?
A)
add nutrients to the nearby ocean waters to see if the algae grow taller
B)
put a small cage around the algae to keep snails from eating them and then see if the protected algae are taller than unprotected ones
C)
change the light intensity to see if this causes the algae to stay short
D)
redirect ocean waves to see if wave shock causes the algae to stay short
11
CORRECT
Old stories tell of gigantic sea serpents, possibly ancient reptiles called plesiosaurs. To prove that they still exist, the most useful scientific evidence would be which of the following?
A)
good photographs of the creatures
B)
reliable eye-witness accounts of seeing them
C)
unexplained bite marks on fish
D)
a fresh skull with flesh still attached
12
CORRECT
The voyages of Captain Cook provided which of the following?
A)
soundings of the deep sea
B)
reliable navigational charts
C)
the first exploration of northern polar regions
D)
an explanation for the formation of atolls.