Tag: structure of earthworm
Questions Related to structure of earthworm
Find out the wrongly matched pair.
-
Nephridia - Earthworms - help to remove nitrogenous wastes and maintain ionic balance
-
Malpighian tubules - insects including cockroaches - help in the removal of nitrogenous wastes and osmoregulation
-
Antennal glands or green glands - excretory organ in the abdominal part of crustaceans like prawns - perform the excretory function
-
Protonephridia - Rotifers - primarily concerned with ionic and fluid volume regulation
Earthworm respires by
-
Clitellum
-
Ctenidia
-
Moist skin
-
Typhlosole
Respiration takes place through the moist surface of the body of an earthworm. Moist surface aids in easy diffusion of gases. Haemoglobin is the respiratory pigment that helps in transportation of oxygen to different parts of the body.
Earthworm is:
-
Hermaphrodite
-
Monoecious
-
Dioecious
-
Both (a) and (b)
If non labelled diagram of earthworm is given, then which special character must be shown to include it in a specific phylum?
-
Eye
-
Metamerical segmentation
-
Clietlum
-
Anus
Which of the following animals body shows bilateral symmetry?
-
Star fish
-
Jelly fish
-
Earthworm
-
Sponge
In earthworm, pharyngeal, nephridia are present as three paired tuffs in the segments.
-
$3$rd, $4$th and $5$th
-
$4$th, $5$th and $6$th
-
$5$th, $6$th and $7$th
-
$6$th, $7$th and $8$th
Earthworm moves with the help of
-
Muscles
-
Setae
-
Parapodia
-
Setae and muscles
Earthworm is able to move with the help of combined efforts of muscles and setae. Both of them help in longitudinal and circular movement of the muscles. The coelomic fluid acts as a hydraulic skeleton in the body of an earthworm. It helps to provide stiffness to the body and relaxation of the muscles. Thus option D is correct.
Pheretima is
-
Arboreal
-
Scansorial
-
Fossorial
-
Cursorial
Pheretima is a fossorial animal that lives in moist soil burrows. In summer, when the topsoil is dry, earthworms burrow deep into the soil. The earthworm burrows are lined by slimy secretion of its body. Temperature regulation while others use the underground habitat for protection from predators or for food storage.
Earthworm is
-
Nocturnal
-
Diurnal
-
Aquatic
-
All the above
Earthworm is a reddish brown terrestrial invertebrate that inhabits the upper layers of the moist soil rich in decaying matter. It is nocturnal and during the daytime, it lives in burrows made by boring and swallowing the soil.
Find the odd one out:
-
Balanoglossus
-
Herdmania
-
Saccoglossus
-
Earthworm
Earthworm belongs to phylum Annelida where as rest of the three belong to phylum Hemichordate. Hemichordates are said to be connecting link between chordate and non chordate because they have their half of the body with notochord whereas half is without notochord.