27 Jun BIO145 Marine Biology Lesson 4 Quiz
Question
BIO145
Marine Biology
Lesson 4 Quiz
1 of 25 Which of the following is not true of decay bacteria?
They break down waste products and dead organic matter.
They carry out photosynthesis.
They are heterotrophs.
They are particularly abundant in bottom sediments.
They ensure the recycling of essential nutrients.
QUESTION
2 of 25 Cyanobacteria are characterized by which of the following characteristics?
Decomposers
Found only in the plankton
Having a glass-like skeleton
Protists
Photosynthetic
QUESTION
3 of 25 Archaea are characterized by being
prokaryotic.
autotrophs only.
heterotrophs only.
found only in extreme environments.
eukaryotic.
QUESTION
4 of 25 Organisms having a shell made of silica (SiO2) are
Foraminiferans.
Stromatolites.
Cyanobacteria.
Diatoms.
Ciliates.
QUESTION
5 of 25 Red tides are caused mostly by
diatoms.
foraminiferans.
dinoflagellates.
red seaweeds.
radiolarians.
QUESTION
6 of 25 Dinoflagellates that live in association with reef-building corals and other animals are known as which of the following?
Zooxanthellae
Zooplankton
Silicoflagellates
Bioluminescent dinoflagellates
Cryptomonads
QUESTION
7 of 25 Marine fungi
are mostly photosynthetic.
are parts of lichens that live on rocky shores.
secrete calcareous skeletons.
produce red tides.
are only found near hydrothermal vents.
QUESTION
8 of 25 What is the purpose of the spines seen on the frustules of diatoms?
Floatation
Hunting
Photosynthesis
Reproduction
Defense
QUESTION
9 of 25 An algal bloom is defined as which of the following?
Mass reproduction of algal cells
Mass death of algal cells
Mass feeding on algal cells by zooplankton
Mass vertical migrations of algal cells
Mass horizontal migrations of algal cells
QUESTION
10 of 25 Bioluminescence is observed in
diatoms.
dinoflagellates.
radiolarians.
roraminiferans.
lichens.
QUESTION
11 of 25 Seaweeds are included among the Protista. Some biologists, however, place them instead in the
Kingdom Animalia.
Kingdom Fungi.
Kingdom Plantae.
Prokaryotes.
Seagrasses.
QUESTION
12 of 25 Seaweeds are different from diatoms or dinoflagellates in that they _________________.
have true roots and stems
have leaves just like those found in plants
are photosynthetic
are mostly multicellular
are eukaryotic
QUESTION
13 of 25 The root-like, anchoring structure of many seaweeds is called the
blade.
pneumatocyst.
thallus.
holdfast.
stipe.
QUESTION
14 of 25 Which of these groups of algae is found mostly in fresh water and on land?:
Green algae
Brown algae
Kelps
Red algae
Coralline red algae
QUESTION
15 of 25 Encrusting algae are commonly found living
in the plankton.
on rocks.
as parasites.
as endophytes.
on the water surface.
QUESTION
16 of 25 An example of a natural seaweed product used as an emulsifier in processed foods is __________.
antibiotics
paper substitutes
algin
aspirin
green lignin
QUESTION
17 of 25 Marine flowering plants include all of the following except
mangroves.
kelps.
seagrasses.
cord grass.
surf grass.
QUESTION
18 of 25 A marine photosynthetic eukaryote that reproduces by forming seeds during reproduction would be ______.
green algae
a coral photosynthetic animal
a green sea turtle
a flowering plant
fungus
QUESTION
19 of 25 Mangroves live in coastal waters that
are well protected from strong wave action.
have high salinity.
are located in temperate regions.
have high amounts of nutrients.
are rocky.
QUESTION
20 of 25 Coralline algae _______________________.
help build reef ecosystems
cement together loose volcanic sands
are only found in sandy lagoon habitats
are actually a fungus
are primary zooplankton found near the surface
QUESTION
21 of 25 Which of the following is the best description of a primary producer?
An organism that lives by eating other free-floating life
An organism that swims in the ocean to great depths
An organism that carries out photosynthesis and releases oxygen into the environment
A bacteria using sulfur compounds to create energy
An organism that lives by absorbing nutrients from others nearby
QUESTION
22 of 25 Which of the following is an example of a primary producer?
Bacteria near a hydrothermal vent
Crab living on the bottom of a continental shelf
Migrating sea turtle eating seaweed along the way
One of many green algae cells in a vast algal bloom
The first fungal cell to become encrusted on a tidal rock
QUESTION
23 of 25 When changing the swimming pool filter, one would most likely encounter a product made from the long-dead remains of _______________.
diatoms
green algae
mangrove forests
coral reef fish skeletons
encrusting fungi
QUESTION
24 of 25 Symbiotic associations between two marine organisms, each providing something the other needs to live, demonstrates the validity of _________________.
natural selection
parasitism
predator-prey interactions
coevolution
shared life strategies
QUESTION
25 of 25 Seaweeds, like the ones used in food products are classified as ___________________.
eukaryotic herbivores
prokaryotic archea cells
eukaryotic protists
eukaryotic plants
prokaryotic bacteria
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