Cnidaria - protozoa, Biology

Assignment Help:

Cnidaria - Protozoa

The mature medusoid jellyfishes like Aurelia are the sexual stages. Sperms and eggs produced in the dissimilar (male and female) individuals ale released in water, which then fuse to form a zygote. The latter develops into a fixed polyploids scyphistoma that undergoes various transverse fission to produce ephyras by the process called Strobilation (see page lo), a type of asexual reproduction. Thus the sexual generation of the adult jellyfish is alternated along with an asexual generation i.e., scyphistoma. You would recall the alternation of generation is quite common among hydrozoans, in which the highly branching sedentary colonies such as those of Obelia are asexual generations. They give off medusae which are sexual generations. The medusae give rise to the colonies and vice versa, alternating with one another.


Related Discussions:- Cnidaria - protozoa

Functions of testosterone, FUNCTION S OF TESTOSTERONE - (a) It stimula...

FUNCTION S OF TESTOSTERONE - (a) It stimulates the growth and development of male secondary sex organs like the seminal vesicles, prostate and penis. It also helps to maintain

Loop of henle, Normal 0 false false false EN-IN X-NON...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

What is the rh typing of the mother, What is the Rh typing of the mother an...

What is the Rh typing of the mother and of the fetus in the hemolytic disease of the newborn? In the hemolytic disease of the newborn the mother is Rh- and the fetus Rh+. In th

Define term food colours, Normal 0 false false false EN...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Prevention and cure of botulism involves, Q. Prevention and cure of botulis...

Q. Prevention and cure of botulism involves? The prevention and cure of botulism involves: 1. Strict adherence to safe food-processing practices by the food industry 2.

Instrument examination and care, Instrument Examination and Care Cleani...

Instrument Examination and Care Cleaning instruments, provides a good opportunity to examine, replace or remove damaged instruments; lubricate items such as handpieces; and oth

Seliwanoff test or resorcinol hydrochloric acid reaction, Define seliwano...

Define seliwanoff's Test or Resorcinol Hydrochloric Acid Reaction? seliwanoff's test is specific test for ketonic groups and therefore is positive for ketose sugars like fruc

Explain some do's and don'ts when working in laboratory, Explain some Do's ...

Explain some Do's and Don'ts when working in Laboratory? 1) Always wear a lab coat when working a laboratory. 2) Ensure that no harm is caused to yourself or the people work

Energy, what are the types of pyramids studied

what are the types of pyramids studied

Name the parts of plant tissue, Which is the plant tissue responsible for t...

Which is the plant tissue responsible for the filling of the space between other tissues? The plant-filling tissue is generically known as parenchyma. The plant parenchyma can

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