EV 24 EXAM QUESTIONS WITH
ANSWERS
The oil and gas found in the marine environment have their origin as _____. -
-marine sediments
- A major challenge to setting up a marine sanctuary is _____. - -determining
space needs of protected species
- New drugs [like bryostatin] have been isolated from marine organisms to
fight cancer in humans. These chemicals, found in sponges and other soft
creatures, are used in their hosts to _____. - -deter predation
- Overfishing can be detected pretty accurately in an area by a/an _____
catch per unit effort by local fishermen. - -decrease in
- At a level of about _____ depletion of spawning stock biomass, fish species
begin to have trouble recovering population size. - -20%
- True or False. Man has pretty much exhausted the search for new and
potentially useful natural products from the ocean. - -False
- Ocean autotrophs are very important commercially. Which one of these
organisms fits that description? - -kelp
- True or False. Seaweed byproducts are used in ice cream. Yum! - -True
- The most easily accessible and consistently available marine resource is
probably _____. - -fish
- The efficiency of industrialized fishing has _____ over the last 20 years. - -
increased
- True or False. The land and the ocean are both important reservoirs of
natural resources. - -True
- Which of the following valuable products does not come from marine
sediments? - -alginate
- True or False. There are still many marine systems/communities that are
not impacted by over-fishing. - -False
- By-catch is - _____ caught in a net or dredge. - -only the non-commercial
organisms
ANSWERS
The oil and gas found in the marine environment have their origin as _____. -
-marine sediments
- A major challenge to setting up a marine sanctuary is _____. - -determining
space needs of protected species
- New drugs [like bryostatin] have been isolated from marine organisms to
fight cancer in humans. These chemicals, found in sponges and other soft
creatures, are used in their hosts to _____. - -deter predation
- Overfishing can be detected pretty accurately in an area by a/an _____
catch per unit effort by local fishermen. - -decrease in
- At a level of about _____ depletion of spawning stock biomass, fish species
begin to have trouble recovering population size. - -20%
- True or False. Man has pretty much exhausted the search for new and
potentially useful natural products from the ocean. - -False
- Ocean autotrophs are very important commercially. Which one of these
organisms fits that description? - -kelp
- True or False. Seaweed byproducts are used in ice cream. Yum! - -True
- The most easily accessible and consistently available marine resource is
probably _____. - -fish
- The efficiency of industrialized fishing has _____ over the last 20 years. - -
increased
- True or False. The land and the ocean are both important reservoirs of
natural resources. - -True
- Which of the following valuable products does not come from marine
sediments? - -alginate
- True or False. There are still many marine systems/communities that are
not impacted by over-fishing. - -False
- By-catch is - _____ caught in a net or dredge. - -only the non-commercial
organisms
