Echinoderm - circulatory and nervous system, Biology

Assignment Help:

Q. Echinoderm identity card. How are echinoderms characterized according to examples of representing beings, basic morphology, type of symmetry, germ layers and coelom, respiratory system, digestive system, excretory system, circulatory system, nervous system and types of reproduction?

Examples of representing beings: sea cucumber, sea urchin, starfishes. Basic morphology: calcareous endoskeleton with spines, ambulacral system. Type of symmetry: secondary radial, Germ layers and coelom: triploblastics, coelomates. Digestive system: complete, deuterostomes. Respiratory system: nonexistent. Circulatory system: nonexistent. Excretory system: nonexistent. Nervous system: simple, nerve network without cephalization or ganglia. Types of reproduction: sexual, with larval stage.


Related Discussions:- Echinoderm - circulatory and nervous system

Micro-organisms, Micro-organisms: The micro-organisms mixed up i...

Micro-organisms: The micro-organisms mixed up in aerobic absorption and their activities are the same as those found in nature. The organic compounds are oxidised to H

Examples of invertebrate nervous system, Q. Using examples of invertebrate ...

Q. Using examples of invertebrate nervous systems how can the process of evolutionary cephalization be described? Considering the example of invertebrates it is observed that e

Explain the term- ecology, What is Ecology? Ecology is the field of Bio...

What is Ecology? Ecology is the field of Biology that studies the relationship among living beings and among living beings and the environment.

Define transcellular fluid compartment - extracellular fluid, Define transc...

Define transcellular fluid compartment - extracellular fluid? The transcellular fluid is a small compartment that represents all those body fluids which are formed from the tra

What are cotyledons, What are cotyledons? Cotyledons or else seed leave...

What are cotyledons? Cotyledons or else seed leaves are structures formed by the embryo of angiosperms to absorb nutrients from the endosperm and to store and transfer these nu

Oogenesis, - Oogenesis involves the formation of haploid cells from an orig...

- Oogenesis involves the formation of haploid cells from an original diploid cell, called a primary oocyte, through meiosis. - The female ovaries contain the primary oocyte. The

Glycolysis, define glycolysis.describe the various steps of glycolysis

define glycolysis.describe the various steps of glycolysis

What electrocardiogram results show a shortened qt interval, Electrocardiog...

Electrocardiogram results show a shortened QT interval and an increase in the P-R interval (i.e., decreased duration of action potential and decreased conduction velocity). Laborat

How vitamin e is directly related to selenium and pufa, How Vitamin E is di...

How Vitamin E is directly related to selenium and PUFA? Selenium: An inter-relationship exists between vitamin E and selenium, as selenium functions as an integral par1

Stomata can open and close in response to changes in the co2, Stomata can o...

Stomata can open and close in response to changes in the CO 2 concentration inside the leaf. Would you expect stomata to open or close if the CO 2 concentration decreased? Explai

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd