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Test Bank for Marine Biology: Function, Biodiversity, Ecology 2E - page 28 / 44

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a. Horseshoe crab

b. Lobster

c. Crab

d. Barnacle

Brachiopods, bryozoans, and phoronids share the following

a. They are all colonial

b. A ctenidium

c. A radula

d. A lophophore

Echinoderms differ from mollusks in their

a. Lack of three tissue layers

b. Dominant radial symmetry

c. Lack of a calcium carbonate skeleton

d. All of the above

Benthic sea squirts are most closely related to

a. The sponges

b. The vertebrates

c. The arthropods

d. Plants

In Cambrian times

a. All of the phyla that lived failed to survive to the present

b. No bilateral groups had arisen as yet

c. Nearly all of the fossilizable living phyla had appeared by then

d. None of the above

Chapter 12

An individual seaweed attached to the substratum is known as a

a. Stipe

b. Holdfast

c. Thallus

d. Blade

Green seaweeds

a. Are exclusively unicellular

b. Include the coralline algae

c. Use starch as their storage product

d. Are exclusively multicellular

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