Multiple choice

The term used for fertilized egg is

  1. ovum

  2. zygote

  3. blastocyst

  4. morula

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

After a female egg is fertilized, it becomes known as a zygote. Once the egg is fertilized, the zygote begins a two-week period of rapid cell division and will eventually become an embryo. The zygote divides through a process known as mitosis, in which each cell doubles by dividing into two cells.