Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Aquatic Biome
Chapter 50 Test
| Question | Answer |
|---|---|
| world ocean covers ___% of planet | 75 |
| freshwater biomes are generally <___% concentrated vs. marine ___% | 1,3 |
| marine biomes are major _______ producers | oxygen |
| marine biomes are major ________ users | carbon dioxide |
| photic zone | enough light for photosynthesis |
| aphotic zone | not enough light for photosynthesis |
| benthic zone | bottom and fixed or mainly crawling inhabitants make up benthos (nekton and plankton) |
| nekton | swimmers |
| plankton | floaters |
| thermoclines | regions of abrupt temperature change |
| thermoclines are common in the _____ or _____ in _______ lakes and ponds (year round in ___________) | spring, summer, temperate, tropical |
| thermoclines are more pronounced here | lower latitudes in the ocean |
| additional pond zonation | littoral zone, limnetic zone, profundal zones |
| littoral zone | shallow edges high in plant and animal life |
| limnetic zone | deeper waters in photic zone with plankton and nekton |
| profundal zone | aphotic zone of a lake or pond |
| pond types | obligotrophic, eutrophic |
| obligotrophic | nutrient poor but oxygen rich |
| eutrophic | nutrient rich but often oxygen poor |
| wetlands | period water but enough to support aquatic plants (compare basin, reverie, and fringe) |
| rivers and streams | headwaters have high oxygen but low nutrients, rivers downstream tend to have more nutrients but less oxygen |
| estuaries | crossover from river to sea (highly productive, high oxygen, and high nutrient value) |
| salt marshes | temperate |
| magrove forest | tropical |
| coral reefs | highly productive marine environment (Rainforest of the ocean)- fringing, barrier, atoll |
| coral reefs are built by | cnidarians (Require solid substrate-zooxanthallae partner) |
| additional ocean zonation | range between high and low tides with specially adapted organisms (hold on + temperature and moisture extremes) |
| pelagic zone | all of the water table |
| neritic zone | low tide to 200 m deep (generally considered the continental shelf) |
| oceanic zone | from neritic out |
| epipelagic | down as far as photosynthesis supported 100-200 m |
| mesopelagic | epipelagic till no light left |
| bathypelagic | 1000 m to 4000 m |
| abyssopelagic | 4000 m down |
| deep-sea hydrothermal vents | hot, mid-ocean ridge vents archaea oxidize hydrogen sulfide for energy |
Created by:
AliRutherford