Biology Test 2 Chapter 33 Invertebrates

Front 1

what are invertebrates and what % of animals species are invertebrates?

Back 1

animals with no back bone. 95%

Front 2

what invertebrates have radial symmtry?

Back 2

cnidarians

Front 3

what clade of protosomes are based on DNA evidence?

Back 3

lophotrochozoa

Front 4

what protosome group are all coverrd by a tough coat called a cuticle? is it a deuterostome or protosome?

Back 4

ecdysozoa, protosome

Front 5

name some groups of deutrosomes

Back 5

echinoderms, chordates

Front 6

where does water flow into in sponges? where does it exit

Back 6

spongocoel, osculum

Front 7

what are the two layers of cells with a gelationous region in between called on sponges>?

Back 7

mesohyl

Front 8

what collar captures food in sponges?

Back 8

choanocyte

Front 9

what take up food and move it to other cells in sponges?

Back 9

amoebocytes

Front 10

what is the sac with one opening that is the mouth and anus on cnidarains called?

Back 10

gastrovascular cavity

Front 11

do cnidarians have nerves?

Back 11

simplest form , have no brain, sensory cells located radially

Front 12

what body plan is cylindrical, sessile, extend tentacles and wait for prey? giev example

Back 12

polpys, hydras anemones

Front 13

what body plan are flattened, motuh is down, drifts or contracts body to propel though water? example

Back 13

medusa, jellies

Front 14

what are tentacles lined with and describe them

Back 14

cnidocytes, unquie cells that function defense and capture of prey. Have organelles called cnidae tha evert

Front 15

what group of cnidarains have both polyp and medusa stages, some found in fresh water?

Back 15

hydrozoa

Front 16

what group of cnidarains are jellies, polyp staged is reduced, swimming medusa?

Back 16

scyphozoa

Front 17

what group of cnidarains are boxed shaped medusa, ahve eyes, and are often toxic?

Back 17

cubozoa

Front 18

what group are sea anemones and exist in polyp stage only?

Back 18

anthozoa

Front 19

describe the clade bilateria

Back 19

animals that are bilateral and also tripoblastic. includes protosome s and dueterosomes.

Front 20

what clade is identidfied by molecular data?

Back 20

lophotrochozooa

Front 21

what are some examples of lophotrochozoas/

Back 21

flatworms, nemerteans, rotifers, ectioprocts, brachipods, mollusvs and annelids

Front 22

what is a lophopore for? what is the other option

Back 22

feeding in lophotrochozoans. others pass through a trochophorelarval stage.