Cutaneous respiration in earthworm., Biology

Assignment Help:

Cutaneous respiration in earthworm.

The respiration performed by the skin is called cutaneous respiration
In earthworm skin is the only organ of respiration.
The skin is richly supplied with blood vessels.In earthworm, the respiratory pigment (unlike other animals haemoglobin is dissolved in the plasma of blood but not in blood corpuscles) Haemoglobin carries oxygen to the tissues.
The skin is always kept moist because of the secretion of mucous & coelomic fluid which comes out through dorsal pores.
The oxygen present in the air diffuses into thin water layer which is beneath the mucous layer and then it diffuses into the blood through the walls of blood capillaries. In the same way carbondioxide expels out through the skin.
Earthworms come out of their burrows in rainy season when the burrows are filled with water due to suffocation.

Related Discussions:- Cutaneous respiration in earthworm.

Explain the process of growth factors, Explain the process by which growth ...

Explain the process by which growth factors promote angiogenesis. Add citation or links.

Radiolarians - protozoan, Radiolarians - Protozoan Radiolarians are en...

Radiolarians - Protozoan Radiolarians are entirely marine planktonic species with spherical bodies and radiating pseudopodia known as axopods. The spherical body is divided in

Denitrifying bacteria play in the nitrogen cycle, What part do (a) nitrifyi...

What part do (a) nitrifying, (b) nitrogen-fixing and (c) denitrifying bacteria play in the nitrogen cycle? a) Nitrifying bacteria in the soil change ammonia and other nitrogeno

Define the role of riboflavin in respiratory chain, Define the Role of Ribo...

Define the Role of Riboflavin in Respiratory Chain? Riboflavin catalyzes numerous oxidation-reduction reactions. Conversion of riboflavin to flavin mononucleotide (FMN) and the

Find which of the following is most stable, Hydrogen ( h) has 1 electron; C...

Hydrogen ( h) has 1 electron; Carbon ( c) has 6 electrons, use the octet rule to determine which of the following is most stable. Note: some of these may have double bonds. A. O

What are the two mains divisions of the chordate phylum, What are the two m...

What are the two mains divisions of the chordate phylum? Chordates are separated into protochordates (cephalochordates and urochordates) and vertebrates. Life Kingdoms Revi

Mitral valve replacement with allograft , Mitral Valve replacement with All...

Mitral Valve replacement with Allograft (Mitral homograft) : C. Acar and colleagues used mitral allograft for mitral valvc replacement using a new technique of fixation of p

Care of eyes, CAR E OF EYES - 1. Eyes should be periodically exa...

CAR E OF EYES - 1. Eyes should be periodically examined in children. 2. While reading the paper should be held 36 cm. away from eyes and preferable at an angle

Define effect on oestrogens and progesterone in pregnancy, Define effect on...

Define effect on Oestrogens and progesterone in pregnancy? Oestrogens and progesterone are secreted by the placenta from 8-10 weeks of gestation. Progesterone increases through

Explain the factors affecting gi of foods, Explain the Factors Affecting GI...

Explain the Factors Affecting GI of Foods? A variety of factors affect GI of foods. The factors which affect the rate of glucose absorption from starchy foods and therefore the

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages