Respond to the following statements with reference to the five terms listed below.
A. This is the fertilized egg.
B. This stage appears as a multicelled, fluid-filled ball.
C. This is the division of the zygote.
D. Its cellular descendants give rise to specific tissues and organs.
E. This is a longitudinal series of paired segments of the mesoderm.
A. Zygote
B. Blastula
C. Cleavage
D. Gastrula
E. Somites
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