Final answer:
The correct order of feature development in a human embryo is neural groove, limb buds, and then eyes. The neural groove forms first as the embryo starts to fold inward, limb buds develop next as the precursor to arms and legs, and eye development follows the formation of the neural tube and brain structures.
Step-by-step explanation:
Embryonic Development Sequence
The correct sequence of development from earliest to latest is C. Neural groove, limb buds, eyes. Development in a human embryo typically follows a set pattern. The neural groove forms early as the neuroectoderm begins to fold inward. This structure will eventually form the neural tube, the basis for the central nervous system, consisting of the brain and spinal cord.
Limb buds appear as small bumps on the embryo's sides and will develop into the arms and legs. This phase is followed by the further differentiation and growth of limbs, such as the appearance of handplates and footplates and the beginning of limb rotation.
The development of eyes happens as the anterior portion of the neural tube begins to form the brain, with different regions specializing to become structures like the optic vesicle, leading to the formation of the eyes.
The nervous system develops from the same germ layer as the skin cells, which is the ectoderm. Embryonic development, in chronological order, progresses from the formation of the three germ layers, followed by the formation of the primitive streak, the formation of the neural tube, and finally, the incorporation of the yolk sac into the embryo. The correct order of prenatal development is zygote, embryo, fetus.