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Marine Ecosystems Review Flashcards | StudBud
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Marine Ecosystems Review
Marine Ecosystems Review
28 terms
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StudBud Administration
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214 plays
marine ecosystems, environmental issues, zones of the ocean, etc
Flashcards
28 cards
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Practice quiz
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Questions
28
Answers
1
The hard outer protective covering for coral is made of limestone. What makes the limestone weak and brittle?
turbid water
high temperatures
increased dissolved oxygen
low pH
2
Development too close to the ocean's intertidal zone is a bad idea because
sand dunes
:
contain a huge variety of organisms
soak up water to prevent flooding
provide protection from storms
are dangerous to walk on or build on
3
Which of these can cause an ocean's
dead zone
?
hypoxia
overabundance of nutrients
all of these
increased algal growth
4
Jellies that are bioluminescent live in the
twilight zone
. What else does?
Clownfish
Anglerfish
Dolphins
Sea turtles
5
What is a
lagoon
?
where rivers and oceans mix
the area of water that recieves sunlight
an saltwater ecosystem that is exposed to changing tides
a protected and enclosed part of the ocean
6
What is the main benefit of
mangroves
?
Neutralizing pollutants
Absorbing water when it rains
Reducing climate change
Preventing storm damage
7
What is a
continental shelf
?
The 'ring of fire'
Tectonic plate boundaries
The relatively shallow area around a large landmass
The photic zone of the ocean
8
The open ocean is known as the 'desert of the sea'.
True
False
9
Tiny jellyfish can't swim well independently. They move with the currents because of their small size. They are:
Plankton
Benthos
Invertebrates
Nekton
10
Where is the biggest garbage patch?
Pacific Ocean
Arctic Ocean
Indian Ocean
Atlantic Ocean
11
What are
solutions
to ocean acidification?
Recycle as much as possible
Burn fewer fossil fuels
Clean up toxic and plastic pollutants
Remove invasive species
12
What is overfishing?
large-scale aquaculture
the extinction of fish
capturing fish faster than they can reproduce
capturing ALL the fish in an area
13
The
continental slope
is:
1
2
4
3
14
All are examples of
benthos
except
seaweed
sea sponges
orca
lobster
15
Which of the following is NOT a characteristic of the deep ocean and the abyssal plains?
Dark
Cold
High pressure
Biodiverse
16
Oil spills are the main (#1) cause of ocean pollution.
False
True
17
Which of the following marine ecosystems has the highest biodiversity?
Coral reefs
Open ocean
Polar seas
Estuaries
18
What is
ocean acidification
?
The decrease of NaCl (salt) in the oceans
The pH decrease in the oceans
The rise in sea level in the oceans
The increase in ocean temperatures
19
What do
invasive species
do to an environment?
cause the biomagnification of toxins
increase biodiversity
reduce population sizes
add new abiotic factors
20
The
Intertidal Zone
is:
exposed to air for part of the day
where salty water and fresh water meet
helps protect the coastline from erosion
the habitat for all plankton
21
Organisms must be adapted to handle wave action and changing tide levels in
this
ecosystem:
coral reefs
open ocean
photic zone
intertidal zones
22
A river empties into the ocean, leading to a mix of saltwater and freshwater. What is it?
lagoon
estuary
delta
salt flats
23
The process of coral getting sick, turning white, and dying due to increased temperatures:
coral detritus
coral bleaching
coral death
coral disease
24
A low
saltwater wetland
area that is subject to regular, gentle tides, is dominated by grasses, and is sometimes dry.
salt marsh
sandy shore
rocky shore
mangrove swamp
25
Bits of organic matter that float down to the ocean floor, providing food for deep sea organisms.
Nutritive detritus
Abyssal nutrients
Marine snow
Abiotic food
26
Estuaries can have a small islands at the mouth of the river. This is known as:
Salt flats
Mangroves
Headwaters
Delta
27
A
dead zone
is an area of water that:
drops all cell service (gasp!)
has low oxygen levels
has low pH due to acid rain
receives no sunlight at all
28
Aquaculture is:
eating seafood at least twice a week.
raising fish and shellfish for food.
anything living in the ocean.
using regulations to limit fishing
