Ch 11 L2

Front 1

invertebrates have no ___________ structures to help support their bodies

Back 1

internal

Front 2

invertebrates tend to be ___________ and to move more ___________ than vertebrates

Back 2

smaller. slowly

Front 3

each invertebrate phylum contains animal with _____________ body plans and physical characteristics

Back 3

similar

Front 4

the simplest of the invertebrates are the __________ which belong to the phylum _____________

Back 4

Sponges, Porifera

Front 5

all sponges are _____________ and have no ________, _______ or _______.

Back 5

asymmetrical. Have no tissues, organs, or organ systems

Front 6

the phylum _________ includes jellyfish and corals

Back 6

Cnidarian

Front 7

unlike sponges, cnidarians have _____________ symmetry

Back 7

radial

Front 8

cnidarians have _______________ that are used for capturing food

Back 8

nematocysts

Front 9

all flatworms have ________ symmetry

Back 9

bilateral

Front 10

flatworms have nerve, muscle, and digestive ______ and a simple __________

Back 10

tissues. brain

Front 11

roundworms are called ___________ and belong to what phylum

Back 11

nematodes. nematoda

Front 12

a roundworm digestive system has two openings. what are they

Back 12

mouth and anus

Front 13

unlike flatworms, the bodies of roundworms are ___________ and covered with a stiff outer covering called a ___________

Back 13

round. cuticle

Front 14

the phylum ___________ includes snails, slugs, clams, and squid

Back 14

mollusca

Front 15

all mollusks have ____________ symmetry

Back 15

bilateral

Front 16

mollusk bodies are __________ and some species have a hard ________ that protects their bodies

Back 16

soft. shell

Front 17

the phylum ___________ includes earthworms, leeches, and marine worms

Back 17

annelida

Front 18

annelid worms have __________ symmetry and ______ bodies

Back 18

bilateral. soft

Front 19

annelid bodies consist of repeating __________ covered with a thin _____________

Back 19

segments. cuticle

Front 20

the phylum __________ includes insects, spiders, shrimp, crabs, and their relatives

Back 20

arthopoda

Front 21

all arthrpods have ____________ which are thick hard outer coverings that support and protect their bodies

Back 21

exoskelton

Front 22

arthropods have several pairs of jointed _________, which are structures, such as a leg or an arm, that extend from the central part of the body

Back 22

appendages

Front 23

all ______ species have three pairs of jointed legs, three body segments, a pair of antennae, and a pair of compound eyes

Back 23

insects

Front 24

spiders, ticks, and scorpions are _________

Back 24

archnids

Front 25

archnids have ______ pairs of jointed legs, two body segments, and they lack an ___________ and ________

Back 25

Four, antennae and wings

Front 26

crabs, shrimp, lobsters are __________

Back 26

crustaceans

Front 27

crustaceans have one or two pairs of ___________ and jointed ________

Back 27

antennae. appendages

Front 28

the phylum _______________ includes sea stars, sea cucumbers, and sea urchisn

Back 28

echinodermata

Front 29

echinoderms are more closely related to ____________ than to any other phylum

Back 29

vertebrates

Front 30

all ecchinoderms have ______________ symetry

Back 30

radial symmetry

Front 31

unlike any other phyla, echinoderms have hard _______________ embedded in the skin that support the body and fluid filled tubes called ___________

Back 31

plates. tubefeet

Front 32

echinoderms have a complete digestive system with a ______ and a ___________

Back 32

mouth. anus