Questions: The fluid that surrounds the fetus is called Amniotic fluid Mesoderm Vernix Placenta

The answer is the first one: Amniotic fluid.

Explanation for each option:

• Amniotic fluid: This is the correct answer. Amniotic fluid is the protective liquid contained within the amniotic sac that surrounds and cushions the fetus during pregnancy.
• Mesoderm: This is incorrect. The mesoderm is one of the three primary germ layers in the early embryo that gives rise to various tissues and organs, but it is not a fluid.
• Vernix: This is incorrect. Vernix, or vernix caseosa, is a waxy or cheese-like white substance found coating the skin of newborns, not a fluid surrounding the fetus.
• Placenta: This is incorrect. The placenta is an organ that develops in the uterus during pregnancy, providing oxygen and nutrients to the growing fetus and removing waste products, but it is not a fluid.

In summary, the fluid that surrounds the fetus is called amniotic fluid.