In month 2, which statement is true?

In month 2, which statement is true?

• A. It is a fetus
• B. It is still an embryo
• C. It is a zygote
• D. It is a morula

Answer: (A)

The main idea is how pregnancy is labeled at different stages. The zygote is the fertilized cell right at conception, and it quickly becomes a morula a few days later. The embryo is the stage from about week 3 through week 8. Starting around week 9, the developing baby is called a fetus. Month 2 corresponds to roughly weeks 5–8, so the developing baby is still an embryo. The term fetus applies later in pregnancy. Therefore, the true statement for month 2 is that it is still an embryo.

The main idea is how pregnancy is labeled at different stages. The zygote is the fertilized cell right at conception, and it quickly becomes a morula a few days later. The embryo is the stage from about week 3 through week 8. Starting around week 9, the developing baby is called a fetus. Month 2 corresponds to roughly weeks 5–8, so the developing baby is still an embryo. The term fetus applies later in pregnancy. Therefore, the true statement for month 2 is that it is still an embryo.