Physics Unit1 Flashcards
What is Magnification?
When you enlarge something
What does focus mean?
When you direct all your attention on someting
What are male sex cells called?
Sperm cells
What are female sex cells called?
Egg cells
What is it meant by fertilisation?
when the sperm and egg cells fuse together, the egg cell gets fertilised
Describe the differences between external and internal fertilisation
external: external will produce a lot of eggs at once, whereas internal only produces 1-4 eggs at a time
What is the function of the placenta?
The placenta gives the baby nutrients from the mother
What is the function of the umbilical cord?
The umbilical cord connects the placenta and the foetus
, so that the foetus can be fed
What is the function of the amniotic fluid?
The amniotic fluid protects the baby
