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Multiple Choice
Which stage is the third stage of development and lasts from two months through birth?
A
Embryonic stage
B
Gastrulation stage
C
Fetal stage
D
Zygotic stage
Verified step by step guidance
1
Understand the stages of human development: The process of human development is divided into several stages, including the zygotic stage, embryonic stage, and fetal stage. Each stage has specific timeframes and characteristics.
Review the zygotic stage: This is the first stage of development, starting from fertilization and lasting until the zygote undergoes several rounds of cell division to form a blastocyst. This stage typically lasts about the first week.
Examine the embryonic stage: This is the second stage of development, lasting from implantation (around the second week) to the end of the eighth week. During this stage, major organs and structures begin to form.
Analyze the fetal stage: This is the third stage of development, beginning at the ninth week and continuing through birth. During this stage, the organism is referred to as a fetus, and it undergoes significant growth and maturation of organs and systems.
Conclude that the fetal stage is the correct answer: Based on the time frame provided in the question (two months through birth), the fetal stage is the third stage of development and matches the description.