Do echinoderms present external or internal fecundation, Biology

Assignment Help:

Q. Do echinoderms present external or internal fecundation? Is there sex division among individuals?

The fecundation in echinoderms is external, gametes are liberated in water where fecundation occurs.

The majority of echinoderms are dioecious with female and male individuals.


Related Discussions:- Do echinoderms present external or internal fecundation

Define biosystematics - animal taxonomy, Define Biosystematics - Animal Tax...

Define Biosystematics - Animal Taxonomy Biosystematics is basically synonymous with systematic, though it places more emphasis upon genetic (concerning inheritance) and cytolog

What kind of eye defect can give rise to short-sightedness, What kind of ey...

What kind of eye defect can give rise to short-sightedness? Long eyeballs, large eyeballs, too powerful a lens or a combination of these defects can give increase to short-sigh

Digestion, Digestion The nutritional requirements and the various way...

Digestion The nutritional requirements and the various ways used by heterotrophic organisms to obtain nutrition. Whether food is used to give energy or to build the body, the

Mosaic and regulative eggs, Mosaic and Regulative Eggs Eggs as well a...

Mosaic and Regulative Eggs Eggs as well as early cleavage embryos are occasionally divided into two categories: i) Mosaic or determinate embryos and ii) Regulative or i

Infective endocarditis, A) Definitive Infective Endocarditis 1) Patho...

A) Definitive Infective Endocarditis 1) Pathological Criteria • Micro organism: demonstrated by culture or histology in a vegetation; or in a vegetation that has embolize

Principles governing cleavage, Principles Governing Cleavage a) The n...

Principles Governing Cleavage a) The nucleus and mitotic achromatic figure tend to occupy the centre of active cytoplasmic density of the dividing cells, e.g., in isolecithal

Typical signs of hip fracture-shortening, In the case story, Reggie present...

In the case story, Reggie presented with three typical signs of hip fracture-shortening, adduction, and the lateral rotation of the affected limb. What causes these signs? (HINT-th

Point mutations are caused by substances mutagens explain, Point mutations ...

Point mutations are often caused by substances called mutagens explain? Point mutations are often caused by substances called mutagens. Base analogs, such as 5-bromouracil, a t

Binding site, Binding site  is the place on cellular DNA to which a protein...

Binding site  is the place on cellular DNA to which a protein (like transcription factor) can bind. Typically, binding sites may be found in the vicinity of genes, and would be inv

Name of the terminal portion of the axon, Q. What is the name of the termin...

Q. What is the name of the terminal portion of the axon? The terminal portion of the axon is called as presynaptic membrane Through, this membrane neurotransmitters are release

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