(B) If fertilisation does not occur,the egg dies and the thick,spongy lining of the uterus,which was prepared to nourish the embryo,is no longer neede

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The uterine lining breaks down and is discharged as blood and mucus.

(B) If fertilisation does not occur,the egg dies and the thick,spongy lining of the uterus,which was prepared to nourish the embryo,is no longer needed. Consequently,this lining slowly breaks down and is discharged from the body through the vagina in the form of blood and mucus,a process known as menstruation.

Class 10 Science How do Organisms Reproduce?Mix Examples - How do Organisms Reproduce?

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What changes are observed in the uterus if fertilisation does not occur?

A
The uterine lining thickens further.
B
The uterine lining breaks down and is discharged as blood and mucus.
C
The uterus produces more hormones.
D
The uterus prepares for implantation.

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Class 10 Questions

Class 10

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How do Organisms Reproduce?

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Mix Examples - How do Organisms Reproduce?

Mention the functions of $(a)$ placenta and $(b)$ fallopian tube in the human female reproductive system.

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$(a)$ Give the functions of $(i)$ Stigma $(ii)$ Ovary. $(b)$ State in brief the formation of seed in a flower.

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Define the term 'double fertilization in plants'. After fertilization,name the part in each case which develops into $(i)$ the fruit,(ii) the seeds.

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List any two modes of asexual reproduction in animals. Under which mode of reproduction is vegetative propagation placed and why? List two advantages of vegetative propagation.

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$(a)$ Identify the asexual method of reproduction in each of the following organisms:
$(i)$ Rose
$(ii)$ Yeast
$(iii)$ Planaria
$(b)$ What is fragmentation? Name a multicellular organism which reproduces by this method.

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What changes are observed in the uterus if fertilisation does not occur?

Similar Questions

Mention the functions of $(a)$ placenta and $(b)$ fallopian tube in the human female reproductive system.

$(a)$ Give the functions of $(i)$ Stigma $(ii)$ Ovary. $(b)$ State in brief the formation of seed in a flower.

Define the term 'double fertilization in plants'. After fertilization,name the part in each case which develops into $(i)$ the fruit,(ii) the seeds.

List any two modes of asexual reproduction in animals. Under which mode of reproduction is vegetative propagation placed and why? List two advantages of vegetative propagation.

$(a)$ Identify the asexual method of reproduction in each of the following organisms:$(i)$ Rose$(ii)$ Yeast$(iii)$ Planaria$(b)$ What is fragmentation? Name a multicellular organism which reproduces by this method.

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$(a)$ Identify the asexual method of reproduction in each of the following organisms:
$(i)$ Rose
$(ii)$ Yeast
$(iii)$ Planaria
$(b)$ What is fragmentation? Name a multicellular organism which reproduces by this method.