Animate being and Fertilized egg

Animate being noun - A living organism characterized by voluntary movement.

Fertilized egg and animate being are semantically related. In some cases you can replace phrase "Fertilized egg" with "Animate being", this phrases are similar.

Fertilized egg noun - An animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life.

Animate being and fertilized egg are semantically related. You can use "Animate being" instead a noun phrase "Fertilized egg".