What characteristic does the fetus resemble at 16 weeks of development?

At 16 weeks of development, the fetus has reached a stage where it bears significant resemblance to a recognizable baby. By this point in gestation, the features of the face, limbs, and body are developing distinctly, and the fetus is visibly more proportionate compared to earlier stages. While it does not yet have the mature characteristics of a newborn or an adult, such as full body fat and complete organ maturity, the overall shape and features are becoming more identifiable as those of a human baby. This resemblance includes visible formation of the head, arms, and legs, which are in their correct positions relative to the rest of the body.

The other choices do not accurately describe the fetal development at 16 weeks. The fetus is not fully formed like an adult, nor does it appear like a newborn baby as it lacks certain physical characteristics and maturity. Additionally, calling it a "small embryo" would be misleading since the term embryo refers to very early stages of development, which precedes the fetus stage that begins around the end of the eighth week. Thus, at 16 weeks gestation, labeling the fetus as a recognizable baby best captures its developmental milestones at this point.