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Biology, 02.03.2021 23:00, dragaozin4505
Advanced medical equipment can first view a baby's heartbeat near the end of which stage?
zygote
blastocyst
embryo
fetus
![answer](/tpl/images/cats/otvet.png)
Answers: 2
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Advanced medical equipment can first view a baby's heartbeat near the end of which stage?
zygote
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