The diagram shows a human female's reproductive system with an eight week embryo (foetus) which is clearly recognisable as human - Junior Cycle Science - Question a - 2008
Question a
The diagram shows a human female's reproductive system with an eight week embryo (foetus) which is clearly recognisable as human. The organs of the foetus are formed... show full transcript
Worked Solution & Example Answer:The diagram shows a human female's reproductive system with an eight week embryo (foetus) which is clearly recognisable as human - Junior Cycle Science - Question a - 2008
Step 1
Mark clearly on the diagram, using an arrow and the label S, where the semen (liquid containing sperm) was released into the female.
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Answer
Indicate the vagina as the correct location on the diagram, labeling it with an arrow pointing to the opening of the vagina, which is where the semen is released during ejaculation.
Step 2
Mark clearly on the diagram, using an arrow and the label F, where fertilization took place.
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Answer
Label the ampulla of the fallopian tube with the letter F, as fertilization typically occurs when the sperm meets the egg in this area.
Step 3
Explain the term fertilisation.
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Answer
Fertilisation is the biological process in which a sperm cell from the male unites with an egg cell from the female. This union forms a zygote, which contains genetic material from both parents, enabling the development of an embryo. The process typically occurs within the fallopian tubes after ovulation, where the sperm travels through the female reproductive tract to reach the egg.
Step 4
State two events that occur in the hours before birth and one event that takes place shortly after the baby is born.
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Before:
Muscles in the uterus contract (labor begins).
The waters break, releasing amniotic fluid.
After:
The umbilical cord is clamped and cut.
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