BIO145Marine Biology Lesson 4 Quiz1
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.
Cyanobacteria are characterized by which of the following characteristics?
Found only in the plankton
Having a glass-like skeleton
Archaea are characterized by being
found only in extreme environments.
Organisms having a shell made of silica (SiO2) are
Red tides are caused mostly by
Dinoflagellates that live in association with reef-building corals and other animals are known as which of the following?
are mostly photosynthetic.
are parts of lichens that live on rocky shores.
secrete calcareous skeletons.
produce red tides.
are only found near hydrothermal vents.
What is the purpose of the spines seen on the frustules of diatoms?
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
Bioluminescence is observed in
Seaweeds are included among the Protista. Some biologists, however, place them instead in the
Seaweeds are different from diatoms or dinoflagellates in that they _________________.
have true roots and stems
have leaves just like those found in plants
are mostly multicellular
The root-like, anchoring structure of many seaweeds is called the
Which of these groups of algae is found mostly in fresh water and on land?:
Coralline red algae
Encrusting algae are commonly found living
in the plankton.
on the water surface.
An example of a natural seaweed product used as an emulsifier in processed foods is __________.
Marine flowering plants include all of the following except
A marine photosynthetic eukaryote that reproduces by forming seeds during reproduction would be ______.
a coral photosynthetic animal
a green sea turtle
a flowering plant
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.
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
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
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
changing the swimming pool filter, one would most likely encounter a
product made from the long-dead remains of _______________.
coral reef fish skeletons
associations between two marine organisms, each providing something the
other needs to live, demonstrates the validity of _________________.
shared life strategies
Seaweeds, like the ones used in food products are classified as ___________________.
prokaryotic archea cells