The fluid-filled chamber which provides a "home" for the developing fetus, as well as insulation from infection and harm, is the:

Amniotic sac

Explanation:

The amniotic sac is the fluid-filled chamber which provides a "home" for the developing fetus, as well as protection from infection and danger

the first settlements began along the huang river because of the importance of the huang river in the beginning of china. it goes back to the story, “the tale of emperor yu”, which references the tale of the great flood, which was caused by the huang river and was believed to create and influence china’s making.

it is loom ps i took the test