science sexual reproduction Flashcards
What are Gametes?
Gametes are specific cells used for reproduction.Sperm cells and Egg cells.
What does the head of the sperm have?
Chemicals in the sperm’s head to burrow
inside the egg.
Where is the umbilicle chord?
The umbilicle chord connects to the baby’s belly button so the mother could feed the baby
What is Fertilisation?
Fertilisation is the fusing of an egg and a sperm cell.
During sexual intercourse, how many sperm enter the vagina?
About 300 million sperm enter the vagina.
What is the fallopian Tube?
It is an empty pathway that tricks sperms to go down there while the others swim towards the tube containing the unfertilized egg.
how long does it take for a woman to produce an egg?
Normaly 28 to 31 days.
How long do sperms last?
Sperms last 24 hours.
What happens when the sperm enters the egg?
The egg has a chemical reaction so that no other sperms could enter.
What happens when 2 or more sperm enter the egg at the same time.
There are more children.
How many chromozones are formed?
23
