DE Marine Bio Midterm Study Guide
1. What do we call bacteria that get organic compounds from chemicals instead of sunlight?:
Chemosynthetic bacteria
2. What causes the tides?: Gravitational pull of moon and sun and the rotation of the earth
3. What phase of the moon do you have when you have the highest high tides?: - Full moon
and new moon
- Called spring tide
4. What is the position that the earth, sun and moon when you have neap tides?: Perpendicular
5. How long is a full tidal cycle: 24 hours and 50 minutes
6. What kind of tidal pattern is it when you have two high tides and two low tides a day but they
are different heights?: Mixed Semidiurnal
7. What kind of tidal pattern when you have one high tide and one low tide a day?: Diurnal
8. You have a tidal bulge on the side of the Earth closest to the moon. What forms that tidal
bulge?: Gravitational force
9. The tidal Bulge on the opposite side of the moon?: Centrifugal force
10.In what state is water in when all the hydrogen bonds are broken and the molecules are moving
the fastest?: Gas
11.What gives water all of its unique properties?: Hydrogen bonds
12.Why is it a more stable environment than land?: It has a high heat capacity
13.What does cyanobacteria do: Nitrogen fixation
14.What are the two nutrients that all plants need?: Nitrogen and phosphorus
15.What is another name for a primary producer?: Autotroph
16.Which organic molecule stores energy, provides insulation, and assists in buoyancy: Lipids
17.Where was the first marine lab in the world?: Italy
18.Where was the first Marine lab in the US?: Woods hole, Massachusetts
19.Who invented scuba?: Jacque Cousteau
20.How do we express salinity: Parts per thousand
21.What could increase salinity?: evaporation
22.What is the rule of constant proportions: The concentration of ions in the ocean does not
change; constant proportion
23.What two factors affect the density of water in the ocean: Temperature and salinity
24.What happens t density as the water gets colder: Gets more dense
25.What happens to the density water as it gets saltier: Gets more dense
26.What is the dominant two types of phytoplankton in the ocean?: Diatoms and dinoflagellates
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1. What do we call bacteria that get organic compounds from chemicals instead of sunlight?:
Chemosynthetic bacteria
2. What causes the tides?: Gravitational pull of moon and sun and the rotation of the earth
3. What phase of the moon do you have when you have the highest high tides?: - Full moon
and new moon
- Called spring tide
4. What is the position that the earth, sun and moon when you have neap tides?: Perpendicular
5. How long is a full tidal cycle: 24 hours and 50 minutes
6. What kind of tidal pattern is it when you have two high tides and two low tides a day but they
are different heights?: Mixed Semidiurnal
7. What kind of tidal pattern when you have one high tide and one low tide a day?: Diurnal
8. You have a tidal bulge on the side of the Earth closest to the moon. What forms that tidal
bulge?: Gravitational force
9. The tidal Bulge on the opposite side of the moon?: Centrifugal force
10.In what state is water in when all the hydrogen bonds are broken and the molecules are moving
the fastest?: Gas
11.What gives water all of its unique properties?: Hydrogen bonds
12.Why is it a more stable environment than land?: It has a high heat capacity
13.What does cyanobacteria do: Nitrogen fixation
14.What are the two nutrients that all plants need?: Nitrogen and phosphorus
15.What is another name for a primary producer?: Autotroph
16.Which organic molecule stores energy, provides insulation, and assists in buoyancy: Lipids
17.Where was the first marine lab in the world?: Italy
18.Where was the first Marine lab in the US?: Woods hole, Massachusetts
19.Who invented scuba?: Jacque Cousteau
20.How do we express salinity: Parts per thousand
21.What could increase salinity?: evaporation
22.What is the rule of constant proportions: The concentration of ions in the ocean does not
change; constant proportion
23.What two factors affect the density of water in the ocean: Temperature and salinity
24.What happens t density as the water gets colder: Gets more dense
25.What happens to the density water as it gets saltier: Gets more dense
26.What is the dominant two types of phytoplankton in the ocean?: Diatoms and dinoflagellates
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