Bio Test 4

Front 1

Animal ancestors have resembled modern

Back 1

Choanoflagellates

Front 2

__________ explosion marks the earliest fossil appereancr of many major groups of living animals.

Back 2

Cambrian

Front 3

______ plan - a set of morphological and developmental traits

Back 3

Body

Front 4

_______ symmetry - with no front and back, or left and right.

Back 4

Radial

Front 5

_______ symmetry - two sides symmetry

Back 5

Bilateral

Front 6

______(top) _______(bottom)

Anterior ( ) postierior ( )

Back 6

Dorsal. Ventral

Head. Tail

Front 7

_________ germ layer covering embryos surface

Back 7

Ectoderm

Front 8

_________ the innermost germ layer and lines the developing digestive tube.

Back 8

Endoderm

Front 9

________ animals have ectoderm and endoderm

Back 9

Diploblastic

Front 10

Coelimate ________

Psuedocoelomate ______

Acoelomate __________

Back 10

Segmented worm

Round worm

Flat worm

Front 11

_______ animals characterized by flagellated collar cells (choanocytes)

Back 11

Sponges

Front 12

Sponge body

Central cavity ________

Open end _______

Back 12

Spongeocoel

Osculum

Front 13

____________

Radial symmetry

Two tissue layers

Back 13

Cnidaria

Front 14

____________ cavity

Single opening for mouth and anus of cnidarians

Back 14

Gastrovascular cavity

Front 15

Class _______

Sea anemones and corals

Back 15

Anthozoa

Front 16

True _______ is a fluid filled body cavity. Serves as a hydrostatic skeleton

Back 16

Coelom

Front 17

_______________

Platyhelminths, nemerteans, mollusks, annelids, lophophorate phyla, rotifers.

Back 17

Lophotrochoza

Front 18

____________

Nematodes (round worms) and arthropods

Back 18

Ecdysozoa

Front 19

_________ gave rise to lophotrochoza and ecdysozoa

Back 19

Protosomes

Front 20

___________

Bilateral symmetry

Cephalization

Well developed organs

Back 20

Acoelomate

Front 21

Class ________

Free living flatworms, including planarians

Back 21

Turbellaria

Front 22

Classes ________ and _________

Parasitic flukes

Back 22

Trematoda and monogenea

Front 23

Class ________

Parasitic tapeworms

Back 23

Cestoda

Front 24

__________

Tube within a tube body plan

Complete digestive tract with mouth and anus

Circulatory system

Back 24

Nemerteans

Front 25

________ common intestinal parasite in humans

Back 25

Ascaris

Front 26

_____ attach to lining of intestine and suck blood

Back 26

Hookworms

Front 27

______ are commonly found in children

Back 27

Pineworms

Front 28

_______ lives inside animals. Infected by eating undercooked meet.

Back 28

Trichina worm

Front 29

_______ (water bears)

Back 29

Tardigrades

Front 30

___________ ( velvet worms)

Back 30

Onychophorans

Front 31

______ covers visceral mass (body organs) in mollusks

Back 31

Mantle

Front 32

Mollusks have an _______ circulatory system.

Back 32

Open

Front 33

Cephalopods have a ______ circulatory system.

Back 33

Closed

Front 34

Most mullusks have a _____ like raduka for dreeding.

Back 34

Rasp

Front 35

Chitons are

Back 35

Polyplacophora

Front 36

__________

Snails, slugs, nudibranchs

Back 36

Gastropoda

Front 37

__________

Clams, oysters, mussels

Back 37

Bivalvia

Front 38

__________

Squids, octopods

Back 38

Cephalopoda