Male reproductive system of earthworm, Biology

Assignment Help:

Male reproductive system of earthworm:

Testis : There are two pairs of testis one on eachside of the body in 10th and 11th segments. They produce sperm mother cells.
Seminal Vesicles : The sperm mother cells enter into the seminal vesicles present in the 9th and 12th segments. These cells mature into sperms in these seminal vesicles.
Vas deferens : Vas deferens are tube like strutures which arise from 10th and 11th segments by the funnels called spermidual funnels. By the cilliary action of the cilia in the spermidual funnels the sperms enter into the ducts - vas deferens. This duct sent out the matured sperms through an aperature called malegential aperture.
Prostate gland : This gland givesout its secretion which binds the sperms and this comes out through the male genital aperture.
Spermathecae : Spermathecae are sac like structures present in the 7, 8 and 9th segments. There are 3 pairs and are helpful in the storing of the sperms of another earthworm.

 

639_male reproductive system of earthworm.png


Related Discussions:- Male reproductive system of earthworm

What can be deduced about the genotype, In pet rabbits, brown coat colour i...

In pet rabbits, brown coat colour is recessive to black coat colour. A black female rabbit gives birth to four black-coated and three brown-coated baby rabbits. What can be deduced

Explain the advantages of shaking water baths, Explain the Advantages of Sh...

Explain the Advantages of Shaking Water Baths? The advantages of using shaking water baths are: (a) Uniform and rapid transfer of heat to the culture can be obtained, and

What are the general necessities for surgery, General necessities for surge...

General necessities for surgery The actual surgical technique of dental implant placement, it would be appropriate to recapitulate the basic principles of surgery. The two prin

What are non-threshold approaches, Non-threshold  approaches For  gene...

Non-threshold  approaches For  genetic carcinogenes, the  "NOEL-safety factor"  approach  is generally  not considered a suitable method for setting the acceptable intake level

Explain the importance for a hypothesis, What's the difference between theo...

What's the difference between theory and hypothesis and explain the importance for a hypothesis to be testable and falsifiable in order for the scientific method to be applied?

How sugar is used in puddings, How sugar is used in Puddings, Sauces and Pi...

How sugar is used in Puddings, Sauces and Pie Fillings? When dry starch is added directly to a hot liquid, the particles on the outside tend to cook first, lumping the raw star

Determine about the chloroplast, Determine about the Chloroplast One of...

Determine about the Chloroplast One of the most distinguishing features of all eukaryotic plant cells is that in addition to mitochondria, they contain special light harvesting

Define nutritional management of neurological disorders, Define Nutritional...

Define Nutritional Management of Neurological Disorders Your friend's aged father, over a period of time has become very confused, forgetful and is unable to do many things he

Define osseointegration and its theories, Q. Define osseointegration and it...

Q. Define osseointegration and its theories? Osseointegration implies that "it is a contact established without interposition of non bony tissue between normal remodeled bone a

Why healthy skeletal muscle fiber is isolated, Why healthy skeletal muscle ...

Why healthy skeletal muscle fiber is isolated A healthy skeletal muscle fiber is isolated and has no external forces on it.  It has normal intracellular levels of ATP and is ba

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