Basic morphological features of echinoderms, Biology

Assignment Help:

Q. What are the basic morphological features of echinoderms?

Echinoderms, as the name indicates (derma = skin, echino = spiny), are creatures with spines originated from an endoskeleton. Their endoskeleton is made of calcareous plaques that besides spines contain pedicellaria, small pincers used to clean the body and to help the capturing of prey. They also present a hydrovascular system known as the ambulacral system. Adult echinoderms have pentaradial symmetry the radial symmetry in these animals is secondary present only in adults.


Related Discussions:- Basic morphological features of echinoderms

Ink prints of leaves, Ink prints of leaves Place a small quantity of pr...

Ink prints of leaves Place a small quantity of printer's ink on a sheet of glass or a tile. Roll the ink into a thin yet layer with a rubber roller. Place a leaf, vein side up,

What is termination , In the eukaryotes, eukaryotic release factor eRF...

In the eukaryotes, eukaryotic release factor eRF-1 recognizes all three termination codons that are UGA UAA, and UAG and, with the help of protein eRF-3, terminates translation.

State the purpose of a neuropsychological screening, State the purpose of a...

State the purpose of a neuropsychological screening The purpose of a neuropsychological screening examination is to determine if there is reasonable evidence, beyond initial cl

Pericardial valves: carpentier edwards, Pericardial Valves: Carpentier Edwa...

Pericardial Valves: Carpentier Edwards (Perimount Valve) :  Pericardium preserved in gluteraldehyde and mounted on flexible stent is available for mitral and aortic positions

How many chambers does the fish heart have, Q. How many chambers does the f...

Q. How many chambers does the fish heart have? The fish heart is a tube made of two consecutive chambers such as one ventricle and one atrium.

Determine requirement of trace elements for infant, Determine Requirement o...

Determine Requirement of Trace elements for Infant? Most elements, such as zinc and iodine, hold a major significance in infant nutrition. Zinc is associated with growth while

Explain spoilage of sweetened condensed milk, Q. Explain Spoilage of Sweete...

Q. Explain Spoilage of Sweetened condensed milk? The sweetened condensed milk contains about 8% milk fat, 23% total milk solids and sweetened with the addition of a sweetener,

Glucagon and glucocorticoids, Important  aspects  related to regulation inc...

Important  aspects  related to regulation include: 1)  The hormones glucagon and glucocorticoids  which are  secreted  during  starvation stimulate  glucose-6-phosphatase to en

How different are gymnosperms from bryophytes, How different are gymnosperm...

How different are gymnosperms from bryophytes and pteridophytes? Gymnosperms are not cryptogamic as bryophytes and pteridophytes are. They are phanerogamic and so they form flo

What is neurological complications congenital heart disease, What is Neurol...

What is Neurological Complications of Congenital Heart Disease ? Neurological complications contribute substantially to mortality and morbidity from congenital heart disease.

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