quiz 8
An urchin's jaw apparatus called ____________________ __________________ has five individual jaws that reflect the animal's symmetry
Aristotle's Lantern
Modern cephalopods include the _________________ with external shells, and coleoids with internal shells.
Exoskeleton
Corals have always been successful reef builders.
False
Fossil forms of crinoids occupied deep marine habitats.
False
Gastropods are strictly marine fauna.
False
The seven phyla and three classes important to the fossil record are important because they all have soft parts that preserve well.
False
Trilobite fauna are not useful for paleogeographic reconstructions of the Cambrian and Ordovician.
False
Trilobites are divided longitudinally into the cephalon, thorax, and pygidium.
False
Centipedes and millipedes belong to the Subphylum _______________________.
Myriapoda
_______ are modern corals that have a symbiotic relationship with dinoflagellates.
Scleractinians
All sponges are aquatic.
True
Ammonoids went extinct at the end of the Cretaceous period.
True
Archaeocyathids were evolutionary dead ends
True
Bivalves are twin-valved shellfish such as clams that have bilateral symmetry parallel to the opening.
True
Blastoids are echinoderms that went extinct at the end of the Permian period.
True
Cephalopods including octopi, squid, cuttlefish, and the extinct ammonoids are mollusks that are adapted for a predatory lifestyle.
True
Class Gastropoda includes the slugs and snails.
True
Corals can be solitary or colonial.
True
Phylum Mollusca includes snails, slugs, clams, oysters, octopi, squid and cuttlefish. as well as the extinct ammonoids and belemnites
True
The Hexapoda include both the winged and non-winged insects. and all have 6 appendages and a single pair of antennae.
True
The Subphylum Chelicerata includes horseshoe crabs, the extinct sea scorpions, terrestrial scorpions and spiders
True
Brachiopods _____________________.
all of the above
The __________________ are the only phylum in which all species are colonial.
bryozoa
All echinoderms have an external skeleton composed of porous plates of the mineral _______________.
calcite
Which of the following is not a life strategy for the Cnidarians?
encrusting
Brachiopods have bilateral symmetry that is parallel to the commissure (opening).
false
All mollusks have a body plan based upon four features: the radula, foot, visceral mass, and ______
mantle
Bryozoa are sensitive to the following environmental parameters:
temperature, depth, salinity, substrate type, and turbulence
The process of ________________________ is characteristic of all gastropods.
torsion