Characteristic features of coelom, Biology

Assignment Help:

Characteristic Features of Coelom

Sensory system consisting of eyes, photoreceptor cells, statocysts, taste buds and tactile organs.
Respiration by skin, gills or parapodia.
Body vermiform, bilaterally symmetrical with metamerism.
Chitinous setae present
Schizocoelic coelom - coelom appearing as a split or cavity within mesoderm.
Blood vascular system closed, often along with retory pigments; plasma contains
Sexes may be separate, or animals may be hermaphrodites. Cleavage spiral, with mosaic development. When present, larva is trochophores. Some animals show asexual reproduction by budding.
Presegmental prostomium and post segmental pygidium.
Nervous system contains a supraesophageal ganglion (cerebral ganglion). Circum oesophageal ring and ventral nerve cord with segmental ganglia.
Excretory system usually consisting of a pair of nephridia in each segment.
Different degrees of cephalization are shown.

Related Discussions:- Characteristic features of coelom

Define post-surgical nutrition support for chd patient, Define Post-surgica...

Define Post-surgical Nutrition Support for CHD Patient? Nutrition support should be started as soon as possible. If oral not possible, enteral nutrition support should be pr

Contraceptive methods, Contraceptive methods The safe and easy methods ...

Contraceptive methods The safe and easy methods to prevent pregnancy are called contraceptive methods. i) Contraceptive methods followed by females are : 1) Use of harmon

Alcohol consumption by diabetes patient, Q. Alcohol consumption by diabetes...

Q. Alcohol consumption by diabetes patient? Intake of alcohol should be limited. It is high in calories, lacks essential nutrients and may therefore promote ketoacidosis, hyper

Explain directive and non-directive counseling, Directive and Non-directive...

Directive and Non-directive Counseling Directive Counseling tends to be appropriate when the counselor is aware of the problem and/or is concerned about the behavio

State the term - myasthenia gravis, Myasthenia Gravis Myasthenia gravis...

Myasthenia Gravis Myasthenia gravis (severe muscle weakness) is characterised by muscular fatigue in the wake of very little exercise. It may be apparent after a short period o

Explain hyperglycaemic, Hyperglycaemic:- In the fasting state, glucose ...

Hyperglycaemic:- In the fasting state, glucose release from the liver increases due to the action of glucagon and in the muscle by epinephrine. Glucagon also enhances glucone

Define instrument for measurement of absorbed radiation, Define Instrument ...

Define Instrument for Measurement of Absorbed Radiation? a) Photometer: This is an instrument which it designed to measure the intensity of the beam of light and usually does s

Human respiratory system - alveoli, A L VEOL I - Sac like structu...

A L VEOL I - Sac like structure, unit of lungs. Increase surface area, exchange of gases occur in it. Rich in blood capillaries. Aloeoli join by pore of Kuhn to form a

Explain differences between thrombus and embolus, Explain the differences b...

Explain the differences between a thrombus and an embolus. Include predisposing factors, mechanism of occurrence, treatment, and methods of detection with medical imaging, if any.

What is the meaning of accumulation, What is the meaning of accumulation ...

What is the meaning of accumulation The word "accumulation" is used in many of the definitions in the sense that th e horizon must have more of the material in question than i

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages