stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Marine Science Semester 2 Review Flashcards | StudBud
Explore
/
Marine Science Semester 2 Review
Marine Science Semester 2 Review
63 terms
·
StudBud Administration
·
78 plays
Semester review
Flashcards
63 cards
F
Practice quiz
P
Host live
L
Questions
63
Answers
1
Why is rising ocean acidity a threat to many types of marine life?
It makes it hard for shell making animals to make a shell
It deprives the water of oxygen
It decreases the amount of sunlight that can pass thru water
It increases the spread of bacterial diseases
2
True/False. Dead jellyfish washed up on the beach are not capable of stinging.
True
False
3
What are mangroves?
birds that live in estuaries
man-made areas of plant growth on the coast
trees that can survive on the coast in warm saltwater
grasses found in salt marshes
4
Because of osmosis, organisms have the tendency to ________ when surrounded by seawater.
lose water
gain salt
lose salt
gain water
5
What is a disadvantage of the arthropod exoskeleton?
it causes the arthropod to dry out
it provides support
it restricts the # of possible appendages
it leaves the animal vulnerable while the new one hardens
6
The function of the stipe is to do the following EXCEPT:
serve as an attachment site for blades
give flexibility in strong storms
provide support
transport water and minerals to other parts of the algae
7
Mangrove roots:
trap sediments & silt that can be polluted, protecting reefs
are entirely underwater & allow it to "breathe" from water
cannot be used as a habitat because of their toxic bark
8
These echinoderms can defend themselves by eviscerating some of their internal organs.
brittle sea stars
sea cucumbers
true sea stars
sea urchins
9
About how much of the Earth is covered with ocean?
90%
70%
30%
50%
10
Which structure makes the mollusk's shell
radula
mantle
siphon
11
Which is TRUE about arthropod reproduction?
large numbers of offspring are usually produced at a time
on hatching, offspring are large enough to avoid predators
parental care is provided to offspring
reproduction is asexual
12
Manatees are most closely related to:
dolphins & whales
fish
elephants
seals & sea lions
13
Which type of algae secretes a calcium carbonate shell and binds coral colonies together?
brown algae
green algae
red algae
14
Which of the following would NOT contribute to an algae bloom?
not as many predators of algae
high nutrient levels
cloudy weather
calm waters
15
The animals that have a feeding structure called an Aristotle's lantern are called:
brittle sea stars
true sea stars
sea urchins
sea cucumbers
16
Which statement is FALSE about water?
It does not dissolve other substances easily
It is essential in carrying out many biochemical reactions
Hydrogen bonds are responsible for water's unique properties
It is a liquid at room temperature
17
What do all mollusks have in common?
a soft body
a shell
a radula
18
These echinoderms can move with spines in addition to tube feet.
brittle sea stars
true sea stars
sea cucumbers
sea urchins
19
This type of sea star has its organs spread throughout its body and arms
brittle sea stars
sea urchins
true sea stars
sea cucumbers
20
How do you treat a mild Portuguese Man-of-War sting?
hot water
vinegar
cold water
benadryl
21
When in sea water, what would happen to a fish's cells if it's not able to cope with osmosis?
the cells would stay the same
the cells would swell and burst
the cells would shrink and collapse
22
Tides are caused by
only the moon's gravitational pull
mostly the moon's pull, with some effect from the sun
mostly the sun's pull, with some effect from the moon
only the sun's gravitational pull
23
Which zone (of the intertidal zone) is the most diverse due to more hospitable conditions?
low tide zone
middle tide zone
spray zone
high tide zone
24
What happens to water molecules when it turns from a liquid to a solid (ice)?
the molecules are more spread out
the molecules weigh more
the molecules get denser
the molecules get smaller
25
True/False. Evaporation makes water less salty.
False.
True.
26
What happens during the formation of a dead zone?
Algae make more O2 thru photosynthesis than amount used up.
When algae die/decompose, they use up more O2
The production of O2 equals amount of O2 that is used up.
27
Bivalves have:
no shell
1 shell
2 shells hinged together
28
What produces most of the Earth's oxygen?
kelp forests
zooplankton
land forests
phytoplankton
29
True/False. The holdfast performs the same functions as plant roots.
True
False
30
Which of the following are safe to eat during a harmful algae bloom & why?
livers/soft tissues of shrimp/crab; they filter out toxins
clams, mussels, oysters; they don't absorb the poison
meaty muscle parts of shrimp/crab; they don't absorb toxins
31
What is the relationship between meiofauna & the health of beaches?
Meiofauna decrease health of beaches b/c they carry diseases
Unhealthier beaches have more amounts & types of meiofauna
Meiofauna improve health of beaches b/c they eat bacteria
Healthy beaches tend to have very few meiofauna
32
The arthropod skeleton is important for the following reasons EXCEPT:
it provides protection from predators
it allows for movement at all regions of the body
it keeps the animal from drying out
it supports the body
33
Seaweed is also known as
macroalgae
microalgae
34
The Gulf of Mexico is currently:
increasing in the number of coral reefs
under threat due to agricultural runoff
very healthy
all of the above
35
The functions of the water vascular system include the following EXCEPT:
capturing prey
digesting food with enzymes
gas exchange
movement
36
What is the purpose of molting in arthropods?
to withstand greater water pressure
to grow larger
to attract a mate
to shed parasites
37
Sea otters keep warm in the following ways EXCEPT:
thick fur
lower metabolisms than other marine mammals
a layer of trapped air in the fur
consuming an abundant amount of food
38
Why is the ocean salty?
sodium and chloride react in the water and form salt
glaciers melting
rocks from land and sea erode
seaweed
39
The dead zone in the Gulf of Mexico is caused by:
excess nutrients (nitrogen/phosphates) washed in by MS river
the Gulf Stream current
constant bright sunlight in the Gulf
seasonal hurricanes
40
Water molecules have the tendency to move from places of _______ salt to _______ salt
less; more
more; less
41
True/False. Eutrophication means an imbalanced ecosystem due to high nutrient levels.
True
False
42
True/False: The ocean has little resources to offer humans besides food.
false
true
43
True/False. Kelp forests are found in cool waters with plenty of nutrients and sunlight.
False
True
44
The seaweed that forms large floating mats in the mid-Atlantic and provides a habitat is called
sea palm
sea lettuce
sargasso weed
giant kelp
45
What does the color of sand BEST indicate?
how much wave and wind energy the sand has experienced
if it has been wind-blown or not
how old the sand is
the original source of the sand
46
In sea stars, the process of digesting prey includes:
a stomach that can be pushed outside the body to engulf prey
one opening for both food and waste
digesting a shelled organism whole, including the shell
sticky tubes that contain toxins
47
Which is true of meiofauna?
Can have adhesives, hooked appendages & claws to grab sand
Reproduction is external with eggs cast out into the ocean
Have soft, sphere-shaped bodies
Are organisms that live in the sand, like seashells & crabs
48
What type of sand is made from hard, once-living material?
biogenic
abiogenic (lithogenic)
49
True/False. Osmoconformers keep their internal salt levels
different
than the surrounding water
True
False
50
Which is NOT true of estuaries?
Protect coastal environments by reducing erosion & flooding
Are wastelands that serve no purpose
Are areas of changing salinities due to fresh & salt mixture
Provide protection to many species of juvenile fish
51
Manatees live in ____ waters due to the fact that they have ______.
warm; little body fat
cool; lots of blubber
both warm & cool; the ability to survive in both climates
52
The feeding mode of these echinoderms is only through filter feeding with plant-like arms.
crinoids
brittle sea stars
sand dollars
true sea stars
53
The following are characteristics of arthropods EXCEPT:
body divided into a head, thorax, and abdomen
jointed legs
segmentation
internal skeleton
54
In clams, the siphons are used to:
bring water in & push it out
all of the above
get food & oxygen
55
What time is it especially NOT good to swim in order to avoid a shark attack?
nighttime
dusk or dawn
daytime
56
True/False. Coastal power plants help save manatees but interfere w/their migration instincts.
True
False
57
The effects of an oil spill on sea otters include the following EXCEPT:
The otter may freeze to death
May be toxic if ingested by the sea otter
Prevents water from penetrating the skin
The layer of air is no longer trapped
58
Which is TRUE about the environment meiofauna are found in?
live in environments with very fine sand grains
can be found on beaches above the water in dry zones
are not found in deep parts of the ocean
require "in-between" sized sand grains for space + moisture
59
The reason why green, red, & brown algae appear the colors that they do is due to the:
other pigments in brown & red algae that mask chlorophyll
lack of chlorophyll in brown and red algae
the absence of chlorophyll in green algae
60
Which is NOT true about the gas bladder in seaweed?
increases buoyancy
transports water & nutrients to other parts
allows the algae to absorb more of the sun's energy
contains air
61
What is the impact of the ocean on Earth's climate?
It prevents heat from moving to other parts of the world.
It doesn't affect Earth's climate.
It makes Earth hotter at the equator & cooler at the poles.
Without it, Earth's climate would be extreme & not livable.
62
If sea otters are removed from the kelp forest ecosystem, what happens?
The habitat shows little to no change.
The kelp and kelp forest food web collapses.
The urchin populations decrease.
The kelp growth rate increases.
63
A food web shows:
many predatory interactions among organisms in an ecosystem
one linear predatory path among organisms in an ecosystem
distribution of energy & abundance of organisms in ecosystem
