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Question
Humans are ______.
Options
oviparous
viviparous
ovoviviparous
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Solution
Humans are viviparous.
Explanation:
Sexually reproducing organisms like humans that give birth to young ones directly. In this case, the development of the zygote occurs within the body of the organism. Such organisms are called viviparous.
RELATED QUESTIONS
List two functions performed by the testis in human beings.
State the reason why testes lie outside the abdomen in a scrotum?
Why is it important that a very large number of sperms should be present in the semen ?
Describe the male reproductive systems in humans.
Draw a diagram of a mature human sperm. Label any three parts and write their functions.
Mention the exact location of the following :
Testis
Define the following:
Dioceious
Given below is the outline of the male reproductive system.
(i) Name the parts labeled 1 to 5.
(ii) State the functions of the parts labeled 1 and 4.
(iii) Name the cells of part 5 that produce testosterone.
(iv) Why is structure 5 present outside the body in the scrotal sacs?
(v) What is semen?
Name the Following
The male gamete (male reproductive cells) of mammals.
Multiple Choice Question:
Which one of the following Is the route that a sperm follows when it leaves the testes of a mammal?
How much semen is generally present in seminal fluid?
In humans, male germs cells differentiate into ______ at the end of first meiotic division.
Male hormone is produced in the testis by cells of ______.
Which one of the following is not a male accessory gland?
Vasa efferentia exist in between:
Answer the following question based on the human male reproductive system:
What is the length of a sperm?
The thin-walled sac of skin in which testis descends is ______.
Given below is a group of terms. In the group, one pair indicates the relationship between the two terms. Rewrite and complete the second pair on a similar basis.
Follicle cells : Ova :: ______ : Sperms.
Given below is the outline of the male reproductive system. Name the parts labelled 1 to 8. Also name the corresponding structure of part (4) in female reproductive system.
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