What is the advantage of sexual reproduction over cloning?

What is the process of ovulation?

Where is the egg when it is fertilized?

When must the egg be fertilized?

How many sperm are produced in a 24 hour period?

How many chromosomes are in a human cell?

When is a baby called a fetus?

When can the fetus hear sounds?

How fast does a fetus's heart beat?

Which statement is true?

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