Marine Biology Diaz
de Leon Homework #6
vocabulary:
larvae pelagic meiofauna chemoautotrophic
solubility zooplankton marine snow vestimentiferan
benthos phytoplankton ephemeral trophosome
life cycle fluke nematode protandrous
definitive host intermediate
host ectoparasite endoparasite
dwarf male epizooic/
epizoite polychaete cercariae
1. Why is
the deep sea called the most
constant environment? What are the
physical characteristics of this habitat?
2. What are some of the
adaptations frequently exhibited by deep sea fish? Tell WHY each is beneficial.
3. Diagram a generalized deep
sea food web.
4. How does the hydrothermal
vent environment differ from ordinary deep sea?
5. What differences in life histories have these
differences selected for.
6. Diagram Riftia and describe the
chemistry of its nutrition.
7. Create a graphic arrangement of your
knowledge of various taxa of
"worms".
8. Diagram the following life cycles: a typical fluke, a tapeworm of marine mammals, the nematode causing herringworm
disease, a fish louse, a rhizocephalan barnacle.
9. Give some examples on non-symbiotic mutualisms.
10. What do we call a (--) ecological
association? Why do no symbioses fit
that category?
11. Give some examples of animal: algae
symbioses. Categorize each
.
12. What type of bacterial / animal symbiosis not
discussed in the lecture on
bacteria is common in deep water?
13. Give several examples of
animal/animal symbioses. Categorize
each and tell who gets what out of the association.
14. Give at least two
examples of protandry. Why is that form of
sexuality beneficial in each case?
15. Review your wetlands chapter notes. What did you learn from the work shop?