हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Humans reproduce ______.

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प्रश्न

Humans reproduce ______.

विकल्प

  • asexually

  • sexually

MCQ
रिक्त स्थान भरें
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उत्तर

Humans reproduce sexually.

Explanation:

Humans are sexually reproducing and viviparous. The reproductive events in humans include the formation of gametes (gametogenesis), i.e., sperm in males and ovum in females; the transfer of sperm into the female genital tract (insemination); and the fusion of male and female gametes (fertilisation), leading to the formation of a zygote.

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अध्याय 2: Human Reproduction - EXERCISES [पृष्ठ ३९]

APPEARS IN

एनसीईआरटी Biology [English] Class 12
अध्याय 2 Human Reproduction
EXERCISES | Q 1. (a) | पृष्ठ ३९
नूतन Biology [English] Class 12 ISC
अध्याय 2 Human Reproduction
NCERT EXERCISES | Q 1. (a) | पृष्ठ ११६

संबंधित प्रश्न

Why are the human testes located outside the abdominal cavity? Name the pouch in which they are present.


What are the major components of seminal plasma?


Describe the T.S. of human testis


ACTH, TSH, ADH, FSH


Put a tick mark (✓) against the correct alternative in the following statement:

Identify the stage which is formed after the fertilisation of the egg by the sperm?


What happens in a boy’s body under the influence of hormones?


Name the following : 

The body part in which the testes are present in a human male.


Write in sequence, the regions which a mature sperm travels from the seminiferous tubules up  to the urethral opening in the human male. 


Write important function of the following:

Inguinal canal


Give the names.

Hormones related with the male reproductive system.


Choose the correct answer:
Removal of testes is called ____________


Draw a label diagram.
Draw a labeled diagram to show the interrelationship of four accessory ducts in a human male reproductive system. 


State the Location:

Seminal vesicle


Write the functional activity of the following structure:

Cowper’s gland


Identify the primary sex organs in males.


Which is the duct that carries sperms from testes and opens into the epididymis?


The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is ______.


Seminal plasma in humans is rich in ______.


Increased secretion of which hormone start the process of sperm formation at the time of puberty?


Which one of the following is not a male accessory gland?


Seminal plasma in human males is rich in ______.


The process of formation of sperms is known as ______.


What is the significance of epididymis in male fertility?


Given below is a certain situation. Analyze and describe its possible impact on a person:

The Vas deferens of a man is plugged.


Describe the function of Bulbourethral glands.


Give reason: Testes are located outside the body cavity in scrotal sacs.


State very briefly the chief function of the following:

Seminal vesicles


Choose the odd one out from the group of terms given below and write the category for the remaining terms:


Write important function of the following:

Testis


Can there be any abnormal situation regarding testes location? If so, what is that and what is the harm caused due to it?


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