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Science CBSE Homework Assignments
Class 10
How do organisms reproduce?
Artificial methods of contraception
2.
Contraceptive devices, stages of sexual reproduction, placenta
Question:
5
m.
Match the Column A with Column B
:
Column A
Column B
1
.
Hormonal method
Condom
Pills
Copper-T
Vasectomy
2
.
Gestation period
Monozygotic twins
\(30\) hours
Colostrum
Fraternal twins
\(280\) days
3
.
Leydig cells
Zygote
Disc-shape
Acrosome
Polyhedral shape
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