platyhelminthes

Question 1

platyhelminthes

Answer 1

flatwoms

Question 2

flatworms

Answer 2

soft bodied
internal organs and tissues
has a head

Question 3

what symmetry do platys have

Answer 3

bilateral

Question 4

what does Acoelmate mean

Answer 4

without a coelom

Question 5

whats a coelom

Answer 5

a fluid filled body cavity lined with tissue from mesoderm

Question 6

endoderm

Answer 6

lines digestive cavity

Question 7

diagram for acoelmate is shaped like what

Answer 7

a triangle with three layers

Question 8

what is platyhelm (flat worms) body plan

Answer 8

tube within a tube

Question 9

what do flatworms breathe excretion and circulation

Answer 9

diffusion

Question 10

why to flatworms have organ systems

Answer 10

for digestion response excretion and reproductions

Question 11

who was the flat worms ancestor

Answer 11

parasitic worms with simple body structures

Question 12

what kind of eaters are flatwoms

Answer 12

carnivores scavengers

Question 13

how many openings do tape worms have

Answer 13

2 one for anus and one for mouth

Question 14

pharnyx

Answer 14

muscle tube near mouth extends out of the mouth to pump food into digestive cavity

Question 15

where does absorbtion and digestion take place

Answer 15

the gut

Question 16

what do parastitic worms feed on

Answer 16

already digested food

Question 17

what does diffusion remove

Answer 17

carbon dioxide and waste

Question 18

what do tapeworms not have

Answer 18

gills or respiratory organs heart and blood

Question 19

flames cells

Answer 19

found in some flatworms for excretion of excess water can filter ammonium joined in a network of tubes that empties to outside through pores in skin

Question 20

ganglia

Answer 20

inside of head controls nervous system

Question 21

do flatworms have eyes

Answer 21

not they have eyespots for detecting light

Question 22

cilia

Answer 22

help in movement are located on epidermal cells help glide through water

Question 23

how do flatworms move

Answer 23

cilia , and muscle cells that enable twisting and moving

Question 24

how do flatworms reproduce

Answer 24

they are hermaphrodites they exchange sperm together

Question 25

hoe do flatworms reproduce asexually

Answer 25

using fragmentation splitting into 2 and the other half turning into another flatworm

Question 26

3 types of flatworms

Answer 26

turbellarians flukes tape worms

Question 27

turbellarians

Answer 27

free living live in the marine

Question 28

planarian

Answer 28

class: turbellarian cross eyed flatworm

Question 29

flukes

Answer 29

class trematoda parasitic flatworm in intestinal organs or blood some are external

Question 30

tapeworms

Answer 30

class cestoda long flat in intestines eats already digested food

Question 31

scolex

Answer 31

on head contains suckers to hook onto hosts intestinal walls

Question 32

what is behind the scolex

Answer 32

narrow region that dived into proglotids (sections of tapeworm body

Question 33

proglottids

Answer 33

the hermaphrodites

Question 34

how do tapeworms reproduce

Answer 34

they can fertalize their own eggs and proglottides break off and burst then are passed out with feces

Question 35

how do tapeworms enter intermediate hosts

Answer 35

zygotes infect water which hosts drink

Question 36

tapeworm life cycle

Answer 36

form as larvae in intermediate hosts then go into dormant stage when ingested by human then become actuve and grow into worms

Question 37

cyst

Answer 37

dormant larvae stage in tapeworms