24. What is the “most productive ecosystem” & what threats does it face?
Marine Ecology Test Review
Define the following words:
1. Abiotic:
2. Biotic:
3. Niche:
4. Habitat:
5. Whale Fall:
6. Halophyte:
7. Neuston:
8. Producer:
9. Primary Consumer:
10.
11.
12.
13.
14.
15.
16.
17.
25. What is the earth’s primary source of energy? Which ecosystem gets the
least amount?
Secondary Consumer:
Eutrophication:
Predator:
Prey:
Biological Magnification:
Competition:
Euphotic:
Disphotic:
26. Order the events of the nitrogen cycle that occurs in your aquarium.
27. What adaptations allow halophytes to be successful in saltwater?
28. Why are estuaries important ecosystems?
29. What makes cooler regions more productive areas than others?
30. Name the two divisions of pelagic zones? What boundary separates them?
18. Fill in the following table:
Definition
Ecosystem
Example
31. What is the salinity for water at 15°C if the density is:
a) 1.0064= _______ & at 24°C the salinity = _______
b) 1.0263= _______ & at 14°C the salinity = _______
Community
32. Fill in the following chart: Neritic Zones
Name of Zone Where is zone found
Characteristics of Zone
Supratidal
(Supralittoral)
Intertidal
(Littoral)
Subtidal
(Sublittoral)
Population
Organism
19. What is a symbiotic Relationship?
20. Fill in the following table:
Definition
Euphotic
Associated zones
33. Fill in the following chart: Oceanic Zones
Name of Zone Where is zone found
Characteristics of zone
Epipelagic
Dysphotic
Mesopelagic
Aphotic
Bathypelagic
21. What is bioaccumulation and what organisms are most affected by it?
Abyssopelagic
22. How much energy is passed from one trophic level to the next? What
happens to the remaining energy that is not passed on?
34. Describe the effects of losing a primary consumer in a food web.
23. What do the arrows in a food chain or web show?
35. List and describe the different Benthic Zones.
Answer your Vocabulary questions here.
1.
Label the following diagram with all of the ocean zones. Draw brackets to
indicate the different light zones on the right side of the image.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
Label each organism with correct:
-Trophic level
-Producer
-Type of Consumer
-Autotroph
-Heterotroph
- Which organism
would have the highest
levels of toxins indicated by
the
according to
biomagnification.
-Describe the effects of Clams
disappearing in the ecosystem.