An egg cell and sperm cell join together to form a _____.

(1 point)
Responses

zygote
zygote

placenta
placenta

blastocyst
blastocyst

fetus

3 answers

zygote

A week after fertilization, a blastocyst attaches to the lining of the _____.
(1 point)
Responses

ovaries
ovaries

uterus
uterus

fallopian tubes
fallopian tubes

ovum

uterus

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