Earthworm

Question 1

metameres divide the body externally by

Answer 1

annuli

Question 2

metameres divide the body internally by

Answer 2

septae

Question 3

Pro-oral segment

Answer 3

prostomium

Question 4

first body segment

Answer 4

peristomium/ buccal segment

Question 5

dark coloured band present on the ___ segment is called ____

Answer 5

14,15,16th segment….. Clitellum

Question 6

Body divided into three parts

Answer 6

preclitellum, clitellum,postclitellum

Question 7

Locomotion by

Answer 7

setae

Question 8

Setae are present on all segments except..

Answer 8

first , last and clitellum

Question 9

Setae are embedded in

Answer 9

the epidermal pit at the middle of each segment

Question 10

Setae are made up of

Answer 10

chitin

Question 11

Female genital pore

Answer 11

Ventral side at the centre of the 14th segms

Question 12

Male genital pore

Answer 12

18th segment

Question 13

Spermathecal pore

Answer 13

5th, 6th, 8th segm

Question 14

Genial papillae

Answer 14

17th , 19th

Question 15

excretion by

Answer 15

nephridia

Question 16

Last segment that posses anus

Answer 16

pygidium

Question 17

body of earthworm is covered by

Answer 17

thin layer of non-cellular cuticle

Question 18

Layers of earthworm

Answer 18

1) Epidermis 2) two muscle layers 3) innermost coelomi epithelium

Question 19

The gland that neutralise the humic acid

Answer 19

calciferous gland

Question 20

intestinal caecal project in which segment

Answer 20

26th

Question 21

internal large fold present on the 26th-35th

Answer 21

Typhlosole

Question 22

what is the characteristic feature of intestine of earthworm

Answer 22

presence of typhlosole

Question 23

first group in the animal kingdom to have hearts

Answer 23

earthworm

Question 24

closed or ope circulatory system

Answer 24

closed

Question 25

blood glands are present in which segment

Answer 25

4th , 5th ,6th

Question 26

the main blood vessels

Answer 26

Dorsal and ventral blood vessels

Question 27

colour of blood

Answer 27

red

Question 28

respiration is through

Answer 28

moist body surface

Question 29

Three types of blood vessels

Answer 29

1) longitudinal 2) transverse or lateral 3) intestinal

Question 30

two nephridia in each segment except

Answer 30

first two, last

Question 31

three types of nephridia

Answer 31

septal nephridia integumentary nephridia pharyngeal nephridia

Question 32

which nephrdia are enteronephric in nature

Answer 32

septal and integumentary

Question 33

nerve centre is in segment

Answer 33

3

Question 34

testes present in

Answer 34

10th and 11th

Question 35

vasa efferentia present upto

Answer 35

18th

Question 36

accessory gland

Answer 36

17th and 19th

Question 37

Male genital pore

Answer 37

18th segment

Question 38

Spermatheca present on

Answer 38

6th 7th 8th and 9th segment

Question 39

ovaries on

Answer 39

12th and 13th

Question 40

ovidut and genital pore

Answer 40

14th

Question 41

types of fetilisation

Answer 41

cross fertilisation

Question 42

mating period

Answer 42

july to october

Question 43

during mating, alignment is such that the ___ segments of one is aligned to the __ th segment of the other

Answer 43

6th and 7th segment ...18th segment

Question 44

male genital papillae on

Answer 44

18th

Question 45

1 coccon produces

Answer 45

2-20 babies ..avg of 4

Question 46

direct or indirect development

Answer 46

direct