Identify the Following Terms

question 111

Short Answer

Identify the following terms.
-Li Yuan

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Definitions:

Placenta

A specialized organ in mammals that connects the developing fetus to the uterine wall to allow nutrient uptake, waste elimination, and gas exchange via the mother's blood supply.

Zygote

The initial cell formed when a sperm cell fertilizes an egg cell, marking the beginning of embryonic development.

Embryo

An early stage of development in multicellular organisms, in humans referring to the stage after fertilization up to the end of the eighth week of gestation.

Fetus

A developing human from roughly eight weeks after conception until birth.