Chapter 3 keyterms

Question 1

Cervical alae

Answer 1

lateral flattened expansions of the cuticle in the region of the anterior end

Question 2

Copulatory bursa

Answer 2

posterior lateral expansion in the male nematode

Question 3

Bursal rays

Answer 3

fingerlike projections from the copulatory bursa

Question 4

Spicules

Answer 4

intermittent organs or penis

Question 5

Dioecious

Answer 5

have separate sexes

Question 6

Ascaroid

Answer 6

Toxocara canis

the egg contains a single-cell stage within the eggshell

Question 7

Trichostrongyle

Answer 7

hookworm type

contains a morula stage within the egg shell

Question 8

Spiruroid

Answer 8

nematode

contains a first stage larva within the eggshell

Question 9

Trichinelloid

Answer 9

whipworm

more oval with different ends on it

Question 10

Trichuroid-type egg

Answer 10

same as trichinelloid

Question 11

Oviparous nematode

Answer 11

the eggs produced by these nematodes contain single-cell stage or morula stage

Question 12

Ovoviviparous nematode

Answer 12

eggs produced by tese nematodes contain a first-stage larva within the eggshell

Question 13

Larviparous nematode

Answer 13

they retain their eggs within the uterus and incubate them then give birth to live larvae

Question 14

Infective third-stage larva

Answer 14

because it is infective for the definitive host

Question 15

Molt

Answer 15

sheds its external cuticle

Question 16

Direct Life cycle

Answer 16

no intermediate host

Question 17

Indirect Life Cycle

Answer 17

uses an intermediate host

Question 18

hypodermis

Answer 18

thin layer directly beneath the nematodes cuticle

Question 19

somatic muscular layer

Answer 19

beneath the hypodermis

Question 20

pseudocoelom

Answer 20

not a true coelom or true body cavity

Question 21

pseudocoelomic membrane

Answer 21

lines the pseudocoelom

Question 22

rectum

Answer 22

female nematodes

Question 23

cloaca

Answer 23

male nematodes

Question 24

tubular testes

Answer 24

male nematode reproductive parts

Question 25

vas deferens

Answer 25

male nematode reproductive organ connecting the tubular testes to the cloaca

Question 26

spicule pouch

Answer 26

contains the two spicules

Question 27

oviduct

Answer 27

leads from the ovary to the uterus

Question 28

seminal receptable

Answer 28

for sperm storage