Exam 2 Flash Cards

The Process by which populations become adapted to the environment

The Process by which populations become adapted to the environment

Natural selection

A section of chromosome that is an imperfect copy of a functional gene

Pseudogene

Anatomical features that supposedly have no apparent function

Vestigial organs

microevolution is a synonym for darwinian evolution

False

Houses the gills and lungs in Mollusca

Mantle cavity

The middle and thick layer in a molluscan shell

Prismatic

The first f two larval stages that occur in most Mollusca

Trochophore

The group that the land and most freshwater snails belong to

Pulmonates

Which is an introduced species that has no known native enemies in the U.S.

zebra Mussel

Eight arms, no tentacle

Octopus

Which is the oldest part of a bivalve shell

Umbo

Which class in Mollusca has a closed circulatory system

Cephalopoda

A crown of tentacles covered with Celia attached to the body wall

Lophophore

The class of branchiopods that have shells with a connecting hinge

Articulata

The name means jointed foot

Arthopoda

The clade in Annelida that contains most of the marine polychaete

Errantia

Lack distinct coelomic compartments

Leeches

The part of the mollusk that secretes the shell

Mantle

Have salivary glands that secrete anticoagulant

Leeches

Lobes on the side of annelids that are especially apparent on polychaete

Clitella

Colony members called zooids secrete a small container in which they live

choanoflagellata

The phylum annelida are the segmented worms

True

Ship worms belong to class

Bivalvia

Mosquitoes pass on these worms to humans

Wucheria filarial worms

Nematodes are

Pseudocoelomic

Which is the human intestinal worm

Ascaria lumbricoides

They are filarial worms

Dog heart worms

Members of Nematoda are known as

Roundworms

The field of study that attempts to classify fossils and living organisms into created kinds

Baraminology

Organissms with radula occur in which Phylum

Mollusca

Hybridization continues to be an important to in determining the continuity and thereby membership in a created kind

True

After analysis to determine a created Kind, the created kind coincides most often with which level of the common classification scheme

Family

Are placed in group Lophotrochozoa

annelida

Organisms in this group have the largest brains of all invertebrates

Cephalopoda

The name means moss animals

Bryozoa

The cuticle in this group is hardened by calcium carbonate

Crustacea

The largest of the arthropod fossils and thought to have been dominate predators

Euryterida

Chiggers are larvae of

Mites

Crustaceans are sessile and enclosed un a shell of plates

Barnacles

spiders belong to which subphyla

Chelicerata

The larvae of the freshwater members of this group are called glochidium

Bivalves

There are more species in this phylum than any other

Arthopoda

Which subphylum’s members have at least some biramous appendages sometime in their life cycle

crustacea

The Euphausiacea

Sea spiders

No carapace. The head and the first two thoracic segments are fused together to form a cephalothorax

Copepoda

They kill their prey with a poison claw

????

The members of this group have a cephalothorax joined by a slender pedicel

Spiders

Transmit Lyme disease

Ticks

Two pairs of legs per segment on the trunk

Diplopoda