What is the difference between chemosynthesis and photosynthesis?
Chemosynthesis - using chemicals for energy; Photosynthesis - using light for energy/food
100
What direction do waves move in?
Waves move in an up and down motion.
100
Put the following in order from least dense to most dense: Oil, Salt water, Fresh Water
Oil, fresh water, salt water
100
What causes tides?
The pull of the moon (and sometimes the sun's) gravity
200
Which zone in the ocean makes up more than 90% of the entire ocean?
The midnight zone
200
What does ROV stand for? Why do we sometimes use these to explore the deep ocean instead of submarines?
Remotely Operated Vehicle
200
What are two potential causes of waves?
SURFACE WINDS, earthquakes, volcanoes
200
What is the difference between plankton and nekton?
Plankton relies on the currents to move, Nekton can move on their own.
200
Name two things that cause currents.
Water density, surface winds, rotating earth
300
In which zone(s) are we most likely to find organisms with photophores?
Photophores create bioluminescence, which is used by organisms in the twilight and midnight zones.
300
What is a hydrothermal vent? Do these areas attract or repel life in the ocean? Why?
Hydrothermal vents are openings in the ocean floor where warm, mineral rich water flows. These areas are FULL of life because of the minerals they release.
300
On the board, draw a diagram of a wave. Include the four pieces of information we discussed in class.
Needs to include crest, trough, wavelength, and wave height
300
What is an estuary? What term do we use to describe the water found in an estuary?
An estuary is where a fresh water river empties into the salt water ocean. We use the term "brackish" to describe the water found in this area."
300
What causes currents to move in different directions in different hemispheres?
Which direction do the currents move in the Northern and Southern hemispheres?
Coriolis Effect; North - clockwise, South - counterclockwise
400
Which of the following changes as you move through ocean zones? : Pressure, penetration of light, temperature
All three change as you move through different ocean zones
400
The hairy angler fish is covered in small "hairs" all over its body. What is the purpose of those hairs?
The hairs help the angler feel when there is movement in the water, which could be useful for finding prey and avoiding predators.
400
DAILY DOUBLE!
What are the names of the two weather patterns that occur in the Pacific Ocean along South America?
El Nino, La Nina
400
A particular type of fish can survive in areas of high turbidity and extremely low turbidity. Could this fish be considered a bioindicator? Why or why not?
Turbidity refers to how dirty water is - so if this fish can live in both very dirty and very clean water, it's not a bioindicator, because we can't tell how clean the water is just by its presence.
400
The southern hemisphere tends to have longer, straighter currents than the northern hemisphere. Why is that?
There are fewer land masses in the southern hemisphere than the northern.
500
"Aphotic" is a term used to describe which of the four ocean zones?
Prefix "a" means not or without; "photic" refers to light. So together, "aphotic" means without light, or the midnight zone.
500
Name the seven deep sea adaptations we discussed in class.
Large mouth, needle like teeth, expandable stomach, bioluminescence, lures, mating strategies, fatty bladder
500
What happens to the debris caused by tsunamis?
Once the enter the ocean, if they aren't caught by a current, they just float in one area off the coast. Once picked up by a current, however, they move with the current.
500
Name two major threats to ocean species caused by humans.
Pollution, Overfishing, Bycatch, Oil Spills
500
What is the difference between a spring tide and a neap tide?
The spring tide occurs when moon, sun and earth are all in a row, so the tides are more extreme (higher highs, lower lows). The neap tide occurs when they aren't in a row, and results in less extreme tides.