Ocean life 3

Question 1

Why do tide pools experience variation in temperature and salinity?

Answer 1

Heat from the sun causes the temperature of tide pools to increase and also causes evaporation of water from tide pools resulting in increased salinity.

Question 2

2. Kelp forests are primarily located in ________, whereas shallow water coral reefs are primarily located in the _________.

Answer 2

Temperate regions; tropics

Question 3

How does the Pompeii worm survive the extreme heat of hydrothermal vents?

Answer 3

A layer of insulating bacteria

Question 4

Since there is no light in the deep-sea environment, the majority of organisms are white in color. True or False

Answer 4

False

Question 5

All of the following are characteristics of shallow seas except:

Answer 5

They have relatively low biodiversity compared to open oceans

Question 6

Kelp forests are often found in areas of cold water and nutrient upwelling. Using what you know about ocean circulation and Ekman transport, in which of the following locations would you expect to see kelp forests?

Answer 6

The west coast of Canada

Question 7

Which of the following is a difference between deep-water fish and shallow-water fish?

Answer 7

Deep water fish have specialized cellular adaptations to compensate for increased pressure

Question 8

Large whales in the Antarctic were the victims of “sequential overharvesting”. In this phenomenon, which of the following whale species would be targeted last?

Answer 8

Minke

Question 9

The Exxon Valdez spill of 1989 is the largest oil spill to occur in U.S. waters. True or false

Answer 9

False- 2010 in gulf of mexico

Question 10

Which of the following describes eutrophication

Answer 10

When extra nutrients from fertilizer runoff or sewage enter the marine environment and cause algal blooms that deplete the dissolved oxygen in the water

Question 11

A small number of species support the majority of fisheries around the world. Which of the following is NOT one of those species?

Answer 11

Thalassoma bifasciatum

Question 12

What are the primary responsibilities of the IWC?

Answer 12

Funds whale research

Reviews and revises the measures that govern whaling

Question 13

Which of the following pairs of countries have overlapping economic exclusion zones for fishing, which has resulted in past disputes over fish stocks?

Answer 13

United Kingdom and Iceland

Question 14

Which of the following fishing methods would be useful for catching summer flounder (Paralichthys dentatus)?

Answer 14

Trawling

Question 15

What of the following types of fish are primarily caught through bottom trawling?

Answer 15

Fertilizer run off

Question 16

the levels of radiation released from the Fukushima reactor currently pose a significant health treat in the waters off California? True or false

Answer 16

false

Question 17

What percentage of the world’s oceans are not considered to be impacted by human activities?

Answer 17

4%

Question 18

Which shallow seas habitat has the greatest species richness?

Answer 18

Coral Reef

Question 19

The term ‘biodiversity hotspots’ refers to areas with high species diversity that are currently protected from human activities? True or false

Answer 19

False

Question 20

Which physical characteristic is the most dominant determinant of species distribution in the intertidal zone?

Answer 20

Tidal Range

Question 21

Cold-water corals use symbiosis with photosynthetic algae to produce food. True or false

Answer 21

False

Question 22

Excessive nutrients from sources such as agricultural runoff are contributing to the growing number of “dead zones.” Dead zones are ________ areas where most marine life cannot survive.

Answer 22

Hypoxic

Question 23

Approximately how many gallons of oil remained in the environment in 2010 after the Exxon Valdez oil spill?

Answer 23

23,000

Question 24

Most plastics in the ocean fall into which of the following size classes?

Answer 24

less than 5 mm

Question 25

Which level of biodiversity refers to the level of diversity within a single species?

Answer 25

Genetic diversity

Question 26

Which physical characteristic is the most dominant determinant of species distribution in a salt marsh?

Answer 26

Exposure to salt water