What are the two major morphological patterns of cnidarians, Biology

Assignment Help:

Q. What are the two major morphological patterns of cnidarians? Concerning locomotion how do these forms differentiate from each other?

Morphologically, cnidarians classify as medusae or polyps. Medusae are circular convex, like an umbrella and Polyps are cylindrical. Both of the shapes have tentacles.

In general polyps are sessile but some species like hydra can move by performing somersaults and by alternating contact points on the substrate. Medusae can move about expelling water jets by contraction of the body.

A few cnidarians alternate a medusoid and polypoid forms in their life cycle.


Related Discussions:- What are the two major morphological patterns of cnidarians

What do you understand by dimorphic nuclei, What do you understand by Dimor...

What do you understand by Dimorphic nuclei? Organization of the nuclear material typical of ciliates. There is always a single small micronucleus and either one large or many m

Principles of homeostasis with negative feedback, The principle of homeosta...

The principle of homeostasis is controlling the heating system with a simple thermostat in a house. These components are essentials thermometer, source of heat turning it on or off

State the term - aneurysms, State the term - Aneurysms Aneurysms are va...

State the term - Aneurysms Aneurysms are vascular dilations resulting from localised defects in the elasticity of a vessel. They can be visualised as balloon like expansions of

What is physiology root pressure explain briiefly, What is Physiology: Root...

What is Physiology: Root Pressure explain briiefly? Transport of water, minerals and nutrients within vascular plants is dramatically different from animals such as humans. Whe

Are there living beings without cells, Q Are there living beings without ce...

Q Are there living beings without cells? Viruses are considered the only living beings that do not have cells. Viruses are constituted by genetic material RNA or DNA enwrapped

Assigment, describe food procurement and digestion in ciliates.

describe food procurement and digestion in ciliates.

Fluids requirement in ulcerative colitis, Q. Fluids requirement in ulcerati...

Q. Fluids requirement in ulcerative colitis? Fluids: A liberal intake of fluid should be given to prevent dehydration. The passage of at least 1200 ml of urine indicates that a

Clinical criteria for diagnosis of infective endocarditis, Major Criteria ...

Major Criteria 1) Positive blood culture • Typical microorganism for infective endocarditis from two separate blood cultures Viridans streptococci, Streptococcus bovis, HAC

Horse diseases-japanese encephalitis, Japanese encephalitis The Japane...

Japanese encephalitis The Japanese encephalitis is a mosquito-born flavivirus infection that causes encephalitis in human and equines and abortion in pigs, caused by Japanese

Transportation of gases in tracheophytes vascular tissues, Is the transport...

Is the transportation of gases in tracheophytes made through the vascular tissues? The Carbon dioxide and The Oxygen are not transported through the xylem or phloem. These gase

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