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Unit 4 Quiz Review

Total questions: 26

Worksheet time: 14mins

Name
Class
Date
1.

Which is the most productive benthic ecosystem?

a)

sandy shore

b)

rocky shore

c)

sea grasses

d)

kelp forests

2.

Which phyla includes corals and sea anemones?

a)

mollusca

b)

porifera

c)

arthropoda

d)

cnidaria

3.

Arthropods have an exoskeleton made of which protein?

a)

chitin

b)

cnidocytes

c)

pneumatocyst

d)

keratin

4.

Kelp has roots.

a)

True

b)

False

5.

What is the name of the structure at the very bottom of the diagram?

a)

stipe

b)

holdfast

c)

blade

d)

root structure

6.

Kelp forests need colder regions to survive.

a)

True

b)

False

7.

Which of the following explains how cnidarians grow?

a)

they slowly add layers of material on the ventral margin of their shell

b)

they regenerate lost body parts

c)

they molt be shedding their skeleton

d)

larger individuals bud off smaller ones

8.

Which of the following explains how arthropods grow?

a)

they slowly add layers of material on the ventral margin of their shell

b)

they regenerate lost body parts

c)

they molt be shedding their skeleton

d)

larger individuals bud off smaller ones

9.

What do Echinoderms use for attachment and locomotion?

a)

muscular foot

b)

tubed feet

c)

spines

d)

exoskeleton

10.

Which organism is important for reducing the effects of ocean acidification?

a)

sea anemone

b)

sea cucumber

c)

bull kelp

d)

crown of thorns sea star

11.

Continental shelves are a prominent feature of which benthic community?

a)

kelp forests

b)

sandy shores

c)

rocky shores

d)

seagrass communities

12.

Select all that are concerns for organisms living in tidal pools.

a)

Rising temperatures

b)

increasing salinity

c)

loss of oxygen

d)

lack of sunlight

13.

Which of the following are adaptations organisms have living in the rocky shore?

a)

they burrow to reduce predation

b)

have shells for protection from waves

c)

feed during high tide

14.

Select all that are the most important factors influencing sandy shore environments.

a)

particle size of the sand

b)

wave action

c)

slope

d)

detritus levels

15.

Which of the following is the largest MARINE phyla?

a)

arthropoda

b)

mollusca

c)

cnidaria

d)

echinodermata

16.

Which class of mollusca includes snails and sea slugs?

a)

Gastropods

b)

Bivalves

c)

Cephalopods

17.

Which class of mollusca includes clams, scallops and oysters?

a)

Gastropods

b)

Bivalves

c)

Cephalopods

18.

Which class of mollusca includes octopuses, squid, cuttlefish and nautilus?

a)

Gastropods

b)

Bivalves

c)

Cephalopods

19.

Which of the following is NOT a modification that ALL mollusks have?

a)

bilateral symmetry

b)

radula

c)

muscular foot

d)

mantle

20.

True or False. Cephalopods are extremely smart and have fully developed brains.

a)

True

b)

False

21.

Which benthic community absorbs large amounts of carbon?

a)

kelp forests

b)

sandy shores

c)

rocky shores

d)

sea grasses

22.

Select all that apply. Which of the following are filter feeders?

a)

barnacles

b)

sponges

c)

oysters

d)

snails

23.

What kind of ocean organisms like to hold on to soft substrates?

a)

kelp

b)

barnacles

c)

seagrass

d)

coral polyps

24.

Which class of mollusca is shown in the photo?

a)

Gastropods

b)

Bivalves

c)

Cephalopods

25.

Which class of mollusca does the cuddly organism shown in the photo belong to?

a)

Gastropods

b)

Bivalves

c)

Cephalopods

26.

Which class of Mollusca does the organism shown in the photo belong to?

a)

Gastropods

b)

Bivalves

c)

Cephalopods