Marine Biology 10th Edition by Castro -Test Bank

Multiple Choice Questions

1. The lower limit of the intertidal zone is the:
   A. Average high tide
   B.  Average middle tide
   C.  Lowest low tide
   D.  Lowest edge of the rocky substrate
   E.  None of the above choices are correct: it varies according to type of substrate

2. The particular characteristic most widely used in classifying intertidal communities:
   A.Type of tides
   B. Relative exposure to air
   C. Type of substrate
   D. Type of seaweeds
   E. Relative immersion by water

3. Regarding the origin of rocky coasts, it is known that this type of shore is present along:
   A.Geologically young coasts
   B. Coasts with high accumulation of sediments
   C. Coasts along the mouth of large rivers
   D. Geologically old coasts being covered by sediments
   E. Coasts being affected by ice sheets

4. The sessile epifauna consists of:
   A.Attached seaweeds
   B. Pelagic organisms
   C. Burrowing animals
   D. Animals that crawl over bottom
   E. Attached animals

5. Which of the following strategies is not used to avoid dessication in the intertidal?
   A. Closing shells
   B.  Crowding by organisms in areas that are always moist
   C.  Burrowing into substrate
   D.  Mucus
   E.  Moving out of tide pools

6. A rocky shoreline would be most likely to be found in:
   A. California
   B.  Massachusetts
   C.  Hawaii
   D.  All of the above
   E.  A and B only

7. Most sessile animals living on rocky shores are:
   A.Deposit feeders
   B. Carnivores
   C. Detritus feeders
   D. Filter feeders
   E. Grazers

8. One of these organisms is expected to be relatively rare on a rocky shore:
   A.Filter feeder
   B. Carnivore
   C. Primary producer
   D. Grazer
   E. Deposit feeder

9. If a rocky shore highly exposed to wave action is compared to a similar rocky shore that is a lot less exposed to wave action, we should expect that barnacles living on the more exposed shore show a:
   A.Wider vertical distribution
   B. Narrower tolerance to salinity
   C. Narrower tolerance to temperature
   D. Narrower vertical distribution
   E. Higher resistance to predators

10. Besides fluctuatiions in salinity and water levels intertidal organisms must also withstand wide variations in:
    A. Temperatures
    B.  Light levels
    C.  Sediment deposition
    D.  Current velocities
    E.  None of the above