The Smaller Lophotrochozoan Phyla Unit

Question 1

What are the characteristics of lophotrochozoans?

Answer 1

bilaterally symmetrical, triplobastic, protostomes

Question 2

Locophore function

Answer 2

horseshoe shaped feeding structure that shows evolutionary relationships

Question 3

How many species are in phylum platyhelminthes?

Answer 3

34,000

Question 4

Are platyhelminthes segmented or unsegmented?

Answer 4

unsegmented

Question 5

What classes are in phylum platyhelminthes?

Answer 5

turbellaria, trematoda, monogenea, and cestiodea

Question 6

How does class turbelleria reproduce sexually and asexually?

Answer 6

sexually: monoecious
asexually: transverse fission

Question 7

Is the phylum platyhelminthes - or + photoreceptive?

Answer 7

negative photoreceptive

Question 8

What is locomotion and how does it move?

Answer 8

they are bottom dwellers and they move using cilia and muscular contractions

Question 9

the class monogenea are what type of parasites?

Answer 9

external (means they live on the outside of the body)

Question 10

what does class trematoda consist of?

Answer 10

flukes

Question 11

what does class cestiodea consist of?

Answer 11

tapeworms

Question 12

how long does it take for summer capsules to hatch?

Answer 12

2-3 weeks

Question 13

how long does it take autumn capsules to hatch?

Answer 13

hatch after winter and thick walls keep them from freezing

Question 14

Do monoecious eggs hatch around the seasons they are called?

Answer 14

No, it is not about when they actually hatch in those seasons, it is more about the conditions being favorable

Question 15

about how many species are in class trematoda?

Answer 15

10,000

Question 16

What does class trematoda feed on?

Answer 16

host cells and cell fragments

Question 17

what are the main characteristics of phylum nematoda?

Answer 17

bilateral, triploblastic, unsegmented, and pseudocoelomate (partial coloem)

Question 18

What is the difference between a complete digestive tract and an incomplete digestive tract?

Answer 18

complete: digestive tract with two openings
incomplete: a digestive cavity with one opening that serves as both the mouth and anus

Question 19

ascaris lumbricodes are otherwise known as

Answer 19

intestinal roundworms

Question 20

where does ascaris lumbricodes live?

Answer 20

small intestines

Question 21

enterobius vermicularis are otherwise known as

Answer 21

pinworms

Question 22

whats the most common type of roundworms in the U.S.?

Answer 22

enterobius vermicularis (pinworms)

Question 23

called “the new world hookworm”

Answer 23

necator americanus

Question 24

what is the most common parasite in louisiana?

Answer 24

necator americanus

Question 25

larva penetrate the skin and makes their way to intestine with which parasite?

Answer 25

necator americanus

Question 26

trichenella spiralis is called..

Answer 26

the pork worm

Question 27

where does the pork worm live?

Answer 27

the small intestines of carnivores and omnivores

Question 28

what is it called when a parasite remain infective for years?

Answer 28

trichinosis

Question 29

wuchereria species are called…

Answer 29

the filarial worms

Question 30

where do the wuchereria species live/

Answer 30

the lymphatic system of humans

Question 31

what is it called with fluid accumulates in the appendages?

Answer 31

elephantiasis

Question 32

what do tapeworms lack?

Answer 32

a mouth and digestive tract