Phylum Nematoda

Question 1

Common characteristic of pseudocoelomate

Answer 1

Pseudocoelom
Eutely
Complete digestive tract

Question 2

______ & _____ do not have a complete digestive tract

Answer 2

Acanthocephalans
Nematomorphs

Question 3

A space b/w gut and mesodermal components of body wall

Answer 3

Pseudocoelom

Question 4

It is spacious, fluid filled that contains visceral organs

Answer 4

Pseudocoelom

Question 5

Body composed of a constant number of somatic cells in adults

Answer 5

Eutely

Question 6

It is a common characteristic that has mouth and anus

Answer 6

Complete digestive tract

Question 7

3 mosquitoes that transmit filarial worm

Answer 7

Aedes
Anopheles
Culex

Question 8

Organs system present in pseudocoelom

Answer 8

Digestive
Excretory
Nervous
Reproductive

Question 9

Organ-system absent in pseudocoelom

Answer 9

Circulatory
Respiratory

Question 10

This are roundworms

Answer 10

Phylum nematoda

Question 11

How many species are there in phylum nematoda

Answer 11

12,000 species

Question 12

They are cylindrical bodies and most are dioecious

Answer 12

Phylum nematoda

Question 13

Phylum nematoda eat

Answer 13

Every type of organic material
Rotting, living tissue

Question 14

It is a human parasite (small intestine) which is up to 30 cm long and found in SE US

Answer 14

Ascaris lumbricoides (underline)

Question 15

Female ascaris lumbricoides lay

Answer 15

200,000 eggs/day

Question 16

Most common parasite in the US found in the large intestine

Answer 16

Pinworms

Question 17

They lay eggs in anus at night and spread through fecal oral route

Answer 17

Pinworms

Question 18

Elephantiasis are caused by

Answer 18

Wuchereria bancrofti (underline)

Question 19

They kibe in lymphatic system and obstruct lymph to cause swelling

Answer 19

Filarial worm

Question 20

It is a dog heartworm which is transmitted by aedes

Answer 20

Hookworms

Question 21

It causes trichinosis

Answer 21

Trichinella

Question 22

A free living nematode that has 959 cells

Answer 22

C elegans (Caenorhabditis elegans) underline

Question 23

“Genetic regulation of organ development and programmed cell death”

Answer 23

Noble prize (2002)
Brenner, Sulston and Horvitz

Question 24

Rota

Answer 24

Wheel

Question 25

Fera

Answer 25

Bearer

Question 26

Ciliated crown

Answer 26

Corona

Question 27

Mostly microscopic and 1800 species (dioecious)

Answer 27

Phylum rotifera

Question 28

This is aquatic and protonephridia with flame cells

Answer 28

Phylum rotifera