QUIZ

Closing in on the end!

1. How far back do we have the oldest evidence for pelagic fishing?

2. What is the simplest form of food gathering called?

3. What kind of relationship is there between a symbol and its referent?

4. How many cultures regard all things in their environment that are edible as "food"?

5. What kind of nets are dragged behind a vessel?

6. What term is used for overfishing when mature adult population (spawning biomass) is depleted to a level where it no longer has the reproductive capacity to replenish itself?

7. To what do the terms "mariculture" and "aquaculture" refer?

8. What term is used for fish that are caught but are not the kind being fished for?

9. What term is used for fishing done with materials that are floating in the ocean with no one to claim them?

10. What term is used for the greatest catch of a species that will ensure the long term viability of the species?

ANSWERS TO THE LAST QUIZ

1. What sea is the only sea surrounded on all sides by water?
Ans. Sargasso Sea

2. What does kelp have that looks like roots (which it lacks)?
Ans. holdfasts

3. Aside from photosynthesis, whatever process allows an organism to be a primary producer?
Ans. chemosynthesis

4. By what other term are hydrothermal vents known?
Ans. black smokerss

5. About what percent of energy is used for growth by the next level in the food chain?
Ans. 10%

6. What is the most common mineral taken from the sea?
Ans. salt

7. What are differences in kind, as opposed to amount, known as?
Ans. qualitative

8. "That which appears when humans come together in social organization", is one possible definition of what concept?
Ans. Culture

9. What kinds of animals have been involved in producing most of the pharmaceuticals used on humans?
Ans. invertebrates

10. What term is the smallest thing to which a compound can be reduced?
Ans. molecule