Unit 6 review

A toothed, biting structure found in the mouths of sea urchins that is used for rasping algae is called:

Aristotle's lantern

In Which phylum do adult organisms exhibit bilateral symmetry

Arthropods

What do sea squirts and mussels have in common?

Both have incurrent and excurrent siphons

Which of the following has a siphon

Cephalopods

Which of the following is a distinct feature of arthropods

Jointed legs

The lancelet looks like a fish but is considered an invertebrate because it:

Lacks a backbone

_____ are important as food in parts of Asia, and fed to chickens in Brazil

Lanclets

Which of the following terms refers to the changing of exoskeleton by crustaceans

Molt

The relationship between zooxanthellae and coral is an example of

Mutualism

Which of the following is most likely to make from sashimi

Nemotods

These animals are most simular to the first species of multicellular organisms

Sponges

Which of the following is a distinct feature of all echinoderms

Water vascular system

Which of the following is not an arthropod

cephalopods

The radula and crystalline style of molluscs are part of the

digestive system

The process by which sea cucumbers protect themselves from predators by releasing their internal organs is called

evisceration

all mollusks have

mantle

A nudibranch is a type of:

mollusc