Earthworm

Front 1

Faecal deposits are called?

Back 1

Worm castings

Front 2

Metameres are about __in no?

Back 2

100-120

Front 3

How are the dorsal and ventral parts marked by?

Back 3

Dark median mid dorsal line

Presence of genital openings

Front 4

What is prostomium?

Back 4

Sensory in function

Front 5

1st body segment?

Back 5

Peristomium

Front 6

Clitellum present b/w? What are they? What tissue do they have?

Back 6

14-16

Prominent dark band of glandular tissue

Front 7

Body is divided into?

Back 7

Preclitellar,Clitellar and PostClitellar Segments

Front 8

Spermathecal Apertures are on? How many?

Back 8

Ventrolateral sides of intersegmented grooves ie 5-9

4 pairs

Front 9

A female pore is present in?

Back 9

In midventral line

Front 10

Male genital pore are?

Back 10

Ventrolateral sides of 18 segments

Front 11

What are numerous minute pores?

Back 11

Nephridiophores

Front 12

Where are the setae absent?

Back 12

1st,last and clitellum (14-16)

Front 13

Where are the setae present?

Back 13

Embedded in epidermal pits in middle of each segment

Front 14

Body wall is covered by?

Back 14

Thin noncellular cuticle

Front 15

Oesophagus is

Back 15

5-7

Front 16

Mouth is

Back 16

1-3

Front 17

Intestinal caecum is

Back 17

26th segment

Front 18

Broken down molecules are absorbed by?

Back 18

Intestinal membranes

Front 19

Blood glands are? They produce?

Back 19

4-6 segments

Produce blood cells which are phagocytic in nature

Front 20

Whre is haemoglobin?

Back 20

Dissolved in plasma

Front 21

Septal Nephridia are

Back 21

15 to last segment

Front 22

Pharyngeal nephridia?

Back 22

4-6 segments

Front 23

Integumentary nephridia are?

Back 23

3-last

Front 24

Where are the each nephridia present?

Back 24

Septal - on both sides of intersegmental septa

Integumentary - attached to lining of body wall

Pharyngeal - present as 3 paired tufts

Front 25

Setae are not found in?

Back 25

Pygidium

Clitellar region

Peristomium

Front 26

Nerve cord is

Back 26

Ventral paired

Front 27

Sensory system?

Back 27

No eyes but has receptor cells (possess light & touch sensitive organs)

Front 28

Specialized chemoreceptors are?

Back 28

Taste receptors

Front 29

Where are the sense organs present?

Back 29

Anterior part of worm

Front 30

Nerve cord present? Structure? Nerve ring formation?

Back 30

Anterior region (3-4 segment)

Laterally encircles the pharynx and joins cerebral ganglia to form nerve ring

Front 31

Cerebral Ganglia + other nerves in ring are for?

Back 31

Sensory input + command muscular responses

Front 32

Spermathecal apertures?

Back 32

Four pairs,5-9 segments

Front 33

Testis present in? No.?

Back 33

10-11 segment

Two pairs

Front 34

Ovaries are paired and attached to?

Back 34

Inter-segmental septum of 12-13 segments

Front 35

Accessory glands present?

Back 35

17-19 segments

Front 36

Single median genital pore in?

Back 36

14 segment

Front 37

What joins to form female genital pore?

Back 37

Ovarian funnel

Front 38

Vas deferentia is?

Back 38

18th segment

Front 39

Male genital pore formed by? Present in?

Back 39

18th segment

Prostatic duct open to form genital pore

Front 40

What is absnet in coelomic fluid of earthworm?

Back 40

Haemoglobin

Front 41

Mating process called?

Back 41

Juxtaposing

Front 42

Cocoons produced by?

Back 42

Gland cells of clitellum

Front 43

Fertilization occurs in?

Back 43

Inside cocoon

Front 44

Produces how many worms? Time?

Back 44

Avg - 4

2-20 worms

After 3 weeks

Front 45

Spermathecal pores are in?

Back 45

5-9 segment grooves

Front 46

Development is?

Back 46

Direct