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

Define about the pancreatic cancer, Define about the Pancreatic Cancer? ...

Define about the Pancreatic Cancer? This is a condition often associated with abdominal pain, anorexia, nausea, and vomiting and weight loss. Ealing may aggravate pain. There m

Explain procedure for detection of metanil yellow, Explain Procedure for De...

Explain Procedure for Detection of Metanil Yellow? Carry out the exercise following the steps enumerated herewith. 1. Suspend the food sample in water and shake vigorously.

Define dissection of the aorta, Q. Define Dissection of the Aorta ? The...

Q. Define Dissection of the Aorta ? The CXR may be abnormal in upto 80 per cent of patients. The abnormalities include: i) Widened mediastinum: This is defined as a mediast

Collection of plant specimens, Q. Collection of plant specimens? Collec...

Q. Collection of plant specimens? Collection of plant specimens is essential for taxonomic research. These circumscribe species and document their variability. Plant material i

Chances of a kidney graft being rejected, State two procedures which are us...

State two procedures which are used to reduce the chances of a kidney graft being rejected Drugs are used to suppress the patient's immune response to foreign tissue. The dono

Name groups of living beings that form the protist kingdom, Which are the g...

Which are the groups of living beings that form the protist kingdom? The protist kingdom contains protozoans and algae. (Two groups of fungi with same characteristics to protoz

What are the two groups of defense mechanisms of the body, What are the two...

What are the two groups of defense mechanisms of the body against foreign or harmful agents? What is the difference between them? The body has many defense mechanisms against f

Explain about functions of the lacrimal apparatus, Explain about functions ...

Explain about functions of the lacrimal apparatus. Tear Secretion Aqueous tears are secreted by the main (reflex secretion) and accessory (basic secretion) lacrimal

Monounsatuated fats required for dyslipidemia, Q. Monounsatuated fats requi...

Q. Monounsatuated fats required for dyslipidemia? Monounsatuated fats (MUFA): These are liquid at room temperature, the highest food source being olive oil, canola oil, rapesee

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