Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Oceanography > Unit 1 > Flashcards

Unit 1 Flashcards

Study for Unit Test

1
Q

Name the zone of rapidly changing temperature with depth.

A

Thermocline

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Name the zone of rapidly changing salinity with depth.

A

Halocline

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Name the zone of rapidly changing density with depth.

A

Pycnocline

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

This layer has sufficient sunlight for photosynthesis; its depth is usually 20-60 meters, rarely 100 meters.

A

Photic zone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The relationship between temperature and density is…

A

Inverse

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

This layer has insufficient light for photosynthesis and makes up most of ocean.

A

Aphotic zone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The relationship between salinity and density is…

A

Directly related

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the % of the surface zone?

A

2%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the % of the transition zone?

A

18%; except polar region

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the % of the deep ocean?

A

80%; except polar region

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Average depth of the ocean?

A

3800m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Deepest depth of the ocean?

A

11000m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What’s a term for ‘near shore’?

A

Nearitic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What’s a term for ‘deep ocean’?

A

Pelagic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

These are light emitting pigments found in bioluminescence.

A

Luciferin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

This enzyme is found in bioluminescence.

A

Lucifrase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the name for passive drifters?

A

Plankton

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

These are a marine autotrophs that photosynthesize organic material from inorganic material.

A

Phytoplankton

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

This type of phytoplankton has a silica (silicious) shell.

A

Diatoms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

This type of phytoplankton is made of calcium carbonate.

A

Coccolithophores

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

These are marine heterotrophs that feed on organic material produced by others.

A

Zoo plankton

22
Q

This kind of organism produces organic material from inorganic material.

A

Autotroph

23
Q

This kind of organism feeds on organic material produced by others.

A

Heterotroph

24
Q

The name given to eggs, spores, and larvae of nektonic or benthic organisms.

A

Meroplankton

25
Q

What can actively swim around and eat other things for food?

A

Nekton

26
Q

What is the name given to bottom dwellers?

A

Benthos or benthic

27
Q

Name the three zones of the ocean.

A

Surface, transition and deep ocean

28
Q

What is located within the transition zone?

A

Thermocline, halocline and pycnocline

29
Q

What is the average salinity of the ocean?

A

3.5% or 35ppt

30
Q

Do the polar regions follow the same general guidelines of the ocean?

A

No, they’re the opposite

31
Q

Name three examples of nektonic creatures.

A

Dolphin, whale, fish (pisces), shark, squid, octopus, sea horse, tuna, stingray

32
Q

Where do phytoplankton live?

A

Within the photic zone

33
Q

Where will you generally find zoo plankton?

A

The upper 1/3 of the ocean

34
Q

Name the two types of benthic feeders.

A

Filter/suspension and sediment

35
Q

Name two kinds of sediment feeders.

A

Worms, snails, sea cucumbers

36
Q

Name two kinds of filter feeders

A

Clams, corals, sponges, crinoids, barnacles

37
Q

What are the four divisions of benthic organisms?

A

Plants/kelp, filter feeders, sediment feeders and scavengers

38
Q

Name two kinds of benthic scavengers.

A

Crab, lobster, starfish, shrimp

39
Q

Give two examples of zoo plankton.

A

Jellyfish,

40
Q

This type of creature cannot regulate their internal temperature; cold blooded.

A

Poikilothermic

41
Q

This type of creature can regulate internal temperature; warm blooded.

A

Homoeothermic

42
Q

What are the controlling factors of density?

A

Temperature and salinity

43
Q

What are the three lifestyle requirements of nektonic organisms?

A

Neutral buoyancy, a propulsion system and senses

44
Q

What type of the fish is a good indicator of lifestyle?

A

The size and shape of their fin

45
Q

What are the two subdivisions of fish bone types?

A

Cartilaginous and bony

46
Q

What is a holdfast?

A

A root like system that rests on top of the ground

47
Q

Which zone are benthic essentially stuck in?

A

Photic

48
Q

These benthic organisms feed on plankton from seawater and are generally anchored to one spot for life.

A

Filter feeders

49
Q

What is a main function of a reef?

A

Modifies wave and current patterns, protects the shore from waves, induces upwelling

50
Q

What is the optimum temperature for a coral reef?

A

18C to 28C

51
Q

What is the optimum depth for a coral reef?

A

3 to 5 meters

52
Q

These benthic organisms scrape food off sedimentary particles.

A

Sediment feeders

Oceanography (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions