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WorksheetsUnit 4 Quiz Review
Total questions: 26
Worksheet time: 14mins
Which is the most productive benthic ecosystem?
sandy shore
rocky shore
sea grasses
kelp forests
Which phyla includes corals and sea anemones?
mollusca
porifera
arthropoda
cnidaria
Arthropods have an exoskeleton made of which protein?
chitin
cnidocytes
pneumatocyst
keratin
Kelp has roots.
True
False
What is the name of the structure at the very bottom of the diagram?
stipe
holdfast
blade
root structure
Kelp forests need colder regions to survive.
True
False
Which of the following explains how cnidarians grow?
they slowly add layers of material on the ventral margin of their shell
they regenerate lost body parts
they molt be shedding their skeleton
larger individuals bud off smaller ones
Which of the following explains how arthropods grow?
they slowly add layers of material on the ventral margin of their shell
they regenerate lost body parts
they molt be shedding their skeleton
larger individuals bud off smaller ones
What do Echinoderms use for attachment and locomotion?
muscular foot
tubed feet
spines
exoskeleton
Which organism is important for reducing the effects of ocean acidification?
sea anemone
sea cucumber
bull kelp
crown of thorns sea star
Continental shelves are a prominent feature of which benthic community?
kelp forests
sandy shores
rocky shores
seagrass communities
Select all that are concerns for organisms living in tidal pools.
Rising temperatures
increasing salinity
loss of oxygen
lack of sunlight
Which of the following are adaptations organisms have living in the rocky shore?
they burrow to reduce predation
have shells for protection from waves
feed during high tide
Select all that are the most important factors influencing sandy shore environments.
particle size of the sand
wave action
slope
detritus levels
Which of the following is the largest MARINE phyla?
arthropoda
mollusca
cnidaria
echinodermata
Which class of mollusca includes snails and sea slugs?
Gastropods
Bivalves
Cephalopods
Which class of mollusca includes clams, scallops and oysters?
Gastropods
Bivalves
Cephalopods
Which class of mollusca includes octopuses, squid, cuttlefish and nautilus?
Gastropods
Bivalves
Cephalopods
Which of the following is NOT a modification that ALL mollusks have?
bilateral symmetry
radula
muscular foot
mantle
True or False. Cephalopods are extremely smart and have fully developed brains.
True
False
Which benthic community absorbs large amounts of carbon?
kelp forests
sandy shores
rocky shores
sea grasses
Select all that apply. Which of the following are filter feeders?
barnacles
sponges
oysters
snails
What kind of ocean organisms like to hold on to soft substrates?
kelp
barnacles
seagrass
coral polyps
Which class of mollusca is shown in the photo?
Gastropods
Bivalves
Cephalopods
Which class of mollusca does the cuddly organism shown in the photo belong to?
Gastropods
Bivalves
Cephalopods
Which class of Mollusca does the organism shown in the photo belong to?
Gastropods
Bivalves
Cephalopods
