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WorksheetsMarine Ecology
Total questions: 71
Worksheet time: 1hrs 20mins
Name
Class
Date
1.
Coral reefs provide
a)
shelter
b)
tourism
c)
protection from storms
d)
all the above
2.
What percent of all the plants and animals in the ocean live around coral reefs?
a)
25 percent
b)
30 percent
c)
50 percent
d)
10 percent
3.
What builds up over time to form a reef?
a)
Sand
b)
Coral skeletons
c)
Fish bones
d)
Rocks
4.
Coral reefs are important to medical research.
a)
true
b)
false
5.
What are the two kinds of coral?
a)
Blue and yellow
b)
Hard and slimy
c)
Hard and soft
d)
Soft and delicate
6.
Greenland sharks can live
a)
50 years
b)
100 years
c)
between 260 and 400 years
d)
2 months
7.
Who causes the most damage to coral reefs?
a)
Whales
b)
Fish
c)
Boats
d)
Humans
8.
What is a tiny individual coral animal?
a)
Polyps
b)
Crevice
c)
Atolls
d)
Erosion
9.
The expulsion of zooxanthellae due to unfavorable conditions is called
a)
Exudation
b)
Bleaching
c)
Decalcification
d)
Denudation
10.
What is it called when coral loses its color?
a)
bleaching
b)
white out
c)
colorization
11.
What else kills coral besides pollution?
a)
too much sun
b)
too much salt water
c)
humans with boats and divers
12.
What is the biggest ecological benefit of coral reefs?
a)
tourism
b)
seafood
c)
habitat
d)
protection of shoreline
13.
What threatens the reefs in the fall?
a)
predators
b)
pollution
c)
hurricanes
d)
elevated temperatures
14.
Where is the Great Barrier Reef located?
a)
Puerto Rico
b)
Florida
c)
Indonisia
d)
Australia
15.
What is the biggest economic benefit of coral reefs?
a)
filtration
b)
habitat
c)
tourism
d)
protection of shoreline
16.
What is the largest reef in the world?
a)
Belize Barrier Reef
b)
Great Barrier Reef
c)
Aldabra Atoll
d)
The Palancar Reef
17.
What is the main abiotic factor that will determine the location of a reef?
a)
light
b)
depth
c)
salinity
d)
temperature
18.
Coral larvae become a __________.
a)
polyp
b)
hard coral
c)
soft coral
d)
reef
19.
What covers coral when it is dead?
a)
Life
b)
Algae
c)
Fish
d)
Seaweed
20.
What is happening to coral reefs around the world?
a)
they are growing too big
b)
they are in danger of dying
c)
they pollute the ocean
21.
Coral reefs are made up of thousands of tiny animals called?
a)
coralettes
b)
polyps
c)
plankton
22.
Coral polyps eat zooxanthellae
a)
True
b)
False
23.
In warm tropical ocean ecosystems, all other life forms depend on which of the following:
a)
Coral
b)
Shrimp
c)
Algae
d)
Bacteria
24.
Once a coral larvae settles in a suitable spot, a new coral reef will eventually develop. What is the stage of life called after it is no longer a larvae?
a)
Anenome
b)
Polyp
c)
Archae
d)
Protozoan
25.
How many years old can a very mature coral reef be?
a)
15 years old
b)
100 years old
c)
250 years old
d)
1000 years old
26.
Some aquatic organisms spend their entire lives in the coral reef while others visit periodically. Why do sea turtles visit the coral reef?
a)
To find a mate
b)
To eat the coral
c)
To be cleaned by helper fish
d)
They never visit the coral
27.
What is a polyp's skeleton made up of?
a)
Limestone
b)
Calcium
c)
Bone marrow
d)
Sand
28.
What type of organism are corals?
a)
Plants
b)
Animals
c)
Bacteria
d)
Fungi
29.
Why are coral reefs only found in shallow tropical waters?
a)
They are not, they are found everywhere.
b)
Because the algae need the sunlight.
c)
Because they cannot tolerate cold water.
d)
Because that's where the fish are.
30.
98% of the food that the corals consume is produced by:
a)
Algae
b)
Fish
c)
Sunlight
d)
Other Coral
31.
Which coral-consuming organism has jaws so powerful it can bite through rock?
a)
Parrotfish
b)
King Crab
c)
Polyps
d)
Whale Sharks
32.
All living things in an ecosystem:
a)
Population
b)
Community
c)
Ecosystem
d)
Organism
33.
Interactions among all the living and nonliving factors:
a)
Ecosystem
b)
Ecology
c)
Biodiversity
d)
Biology
34.
The living factors within the environment:
a)
Ecosystem
b)
Biodiversity
c)
Abiotic
d)
Biotic
35.
One individual living thing:
a)
Population
b)
Community
c)
Organism
d)
Ecosystem
36.
The nonliving factors within the environment:
a)
Abiotic
b)
Biotic
c)
Organism
d)
Community
37.
Group of organisms of the same species, in the same place at the same time.
a)
Population
b)
Community
c)
Ecosystem
d)
Ecology
38.
The variety of living things, different species:
a)
Ecosystem
b)
Ecology
c)
Biodiversity
d)
Community
39.
All the different fish in a fish tank is an example of a(n):
a)
Ecosystem
b)
Community
c)
Population
d)
Organism
40.
A single goldfish named Goldie in a fish tank is an example of a(n):
a)
Ecosystem
b)
Community
c)
Population
d)
Organism
41.
Which of the following is a global cause of the bleaching of the coral reefs?
a)
Species introduced from other part of the world
b)
Changes in ocean currents
c)
Illegal fishing practices
d)
Climate change
42.
Arctic ecosystems are considered marine ecosystems because nearly all the_________ in this area comes from the ocean.
a)
Animals
b)
Food
c)
Snow
d)
Fresh water
43.
Wetlands are important to fisheries in the united states because many of the fish caught each year use the wetlands for _______ and ________
a)
Dying and decaying
b)
Feeding and spawning
c)
Living and working
d)
Escaping and evading
44.
Which of the following is a factor that influences where an organism lives in an aquatic ecosystem?
a)
sunlight
b)
nutrient availability
c)
temperature
d)
all of the above
45.
The bottom area of a pond or lake.
a)
Littoral zone
b)
Benthic zone
c)
Swamp
d)
Barrier island
46.
Bottom dwelling organisms.
a)
Plankton
b)
Fish
c)
Mammals
d)
Benthos
47.
Free swimming organisms
a)
Benthos
b)
Nekton
c)
Amoba
d)
Crustacean
48.
Organisms that cannot swim against current.
a)
Fish
b)
Plankton
c)
Crustacean
d)
Benthos
49.
What determines the arrangement of organisms in the ocean?
a)
nutrients and salinity
b)
sunlight and nutrients
c)
salinity and sunlight
d)
oxygen and salinity
50.
Why does photosynthesis not occur in the deep ocean?
a)
Lack of nutrients
b)
Low oxygen levels
c)
Excess sunlight
d)
Sunlight does not penetrate
51.
What is the source of most ocean pollution
a)
activities on land
b)
climate change
c)
aquatic animals
d)
none of the above
52.
Organism that breaks down dead organisms
a)
plankton
b)
benthos
c)
decomposer
d)
nekton
53.
Amount of dissolved salt
a)
estuary
b)
eutrophication
c)
salinity
d)
runoff
54.
plants that convert energy from the sun or chemicals.
a)
decomposer
b)
primary consumer
c)
secondary consumer
d)
producer
55.
An organism that eat's plants and meat.
a)
herbivore
b)
omnivore
c)
carnivore
d)
detrivore
56.
A relationship that only helps one organism.
ex. barnacle on whale
ex. barnacle on whale
a)
mutualism
b)
parasitism
c)
commensalism
57.
The role or function or job of a species in a community.
a)
habitat
b)
diet
c)
niche
d)
ecosystem
58.
grass->rabbit -> fox
a)
food chain
b)
food web
c)
energy pyramid
59.
Competition
a)
when two or more individuals or populations try to use the same resources
b)
occurs only between individual organisms
c)
occurs only between two or more populations
d)
the largest population that an environment can support at any given time
60.
Carrying Capacity
a)
the largest population that an environment can support at any given time
b)
resources that are so scarce that it limits the size of a population
c)
the smallest population that an environment can support at any given time
d)
the amount of nuts a chipmunk can hold in its cheeks at one time
61.
Limiting Factor
a)
resources that are so scarce that it limits the size of a population
b)
the largest population that an environment can support at any given time
c)
describes the factors that help explain a growth in a population
d)
is represented by a straight line on a graph
62.
Food Web
a)
diagram that shows many paths of how each living thing gets food, and how nutrients and energy are passed from creature to creature
b)
diagram that shows how each living thing gets food, and how nutrients and energy are passed from creature to creature
c)
a triangular diagram that shows the ecosystem’s loss of energy as it passes through the food chain
d)
a web that a spiders builds to capture its food
63.
Food Chain
a)
diagram that shows how each living thing gets food, and how nutrients and energy are passed from creature to creature
b)
diagram that shows many paths of how each living thing gets food, and how nutrients and energy are passed from
c)
a triangular diagram that shows the ecosystem’s loss of energy as it passes from organism to organism
d)
always begin with a consumer
64.
Carnivore
a)
an organism that eats both plants and animals
b)
an organism that eats other animals
c)
an organism that eats only plants
d)
an organism that makes its own food from the suns light
65.
Biosphere
a)
the part of Earth where life exists
b)
describes all living things on Earth
c)
the study of living organisms
d)
a deer, a frog, and a ducks are an example of a population
66.
the largest population that an environment can support at any given time.
a)
carrying capacity
b)
limiting factor
c)
competition
d)
Coevolution
67.
a symbiotic relationship where both organisms benefit
a)
competition
b)
mutualism
c)
commensalism
d)
parasitism
68.
a symbiotic relationship where one organism benefits and one does not benefit but is unharmed
a)
competition
b)
mutualism
c)
commensalism
d)
parasitism
69.
a symbiotic relationship where one organism benefits and one is harmed
a)
competition
b)
mutualism
c)
commensalism
d)
parasitism
70.
behavior of one animal feeding on another
a)
competition
b)
predation
c)
commensalism
d)
parasitism
71.
Ecology
a)
the study of the interactions between organisms and their environment.
b)
describes the living factors in an environment.
c)
a community of organisms and their abiotic environment.
d)
the part of the earth where life exists.
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