Worms

Question 1

what are the three overall groups of worms?

Answer 1

flat, round, segmented

Question 2

what is the phylum for flatworms?

Answer 2

Platyhelminthes

Question 3

what is the phylum for round worms?

Answer 3

Nematoda

Question 4

what is the phylum for segmented worms?

Answer 4

Annelida

Question 5

what does protostome development mean?

Answer 5

mouth forms first

Question 6

what does coelomate mean?

Answer 6

the animal (worm) has a true body cavity

Question 7

which worm is acoelomate?

Answer 7

flat worm

Question 8

which worm is coelomate?

Answer 8

segmented worm

Question 9

which worm is pseudocoelomate?

Answer 9

round worm

Question 10

phylum for planaria

Answer 10

Platyhelminthes

Question 11

phylum for Chlonorchis

Answer 11

Platyhelminthes

Question 12

phylum for leeches

Answer 12

Annelida

Question 13

what kind of symmetry do all of the worms have?

Answer 13

bilateral symmetry

Question 14

how do worms reproduce?

Answer 14

sexually and asexually

Question 15

infectious stages of the liver fluke

Answer 15

1. embryonated eggs passed in feces
2. eggs are ingested by the snail
3. free swimming cercariae encyst in the skin or flesh of the fresh water fish
4. metacercariae in flesh or skin of fresh water fish are ingested by human host

Question 16

infectious stages of tapeworm

Answer 16

1. eggs in feces and passed into environment
2. cattle and pigs become infected by ingesting contaminated vegetation
3. oncospheres hatch, penetrate intestinal wall and circulate to musculature
4. humans infected by ingesting raw or undercooked infected meat

Question 17

phylum Platyhelminthes

Answer 17

planarians, tapeworms, flukes

Question 18

phylum Nematoda

Answer 18

ascaris, trichinella

Question 19

phylum Annelida

Answer 19

earthworms, leeches

Question 20

acoelomate means?

Answer 20

no body cavity

Question 21

pseudocoelomate means?

Answer 21

false body cavity