Which statement about early embryonic development in humans is FALSE?

A) The embryo is moved along the oviduct by ciliary action and muscular contraction.
B) The embryo develops through the blastula stage while floating free in the uterus.
C) The embryo enters the uterus about 24 hours after fertilization.
D) Early division of the embryo occurs in the oviduct.
E) Implantation of the embryo occurs about seven days after fertilization.

Blastula Stage

An early stage in the embryonic development of animals characterized by a spherical layer of cells (the blastoderm) surrounding a fluid-filled cavity (the blastocoel).

Ciliary Action

The movement of cilia, tiny hair-like structures, that help to move fluid or materials across the surface of certain cells.

Muscular Contraction

Muscular contraction is the process where muscle fibers shorten or contract, generating force and movement in the body.