Natalie is six weeks pregnant.At this point,the organism growing inside of her is most properly referred to as a(n)

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At six weeks, the organism growing inside Natalie is most properly referred to as an embryo. The zygote stage is from the fertilization of the sperm and egg up till about two weeks. The blastula stage occurs at around the fifth week when the embryo has implanted itself in the uterus. The fetus stage is not reached until the end of the eighth week.

Natalie Is Six Weeks Pregnant