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DiKsa [7]
2 years ago
15

The heart of an embryo starts to pump blood by the ________.

Biology
2 answers:
astra-53 [7]2 years ago
6 0
Emerging from the placenta is the umbilical vein, which carries oxygen-rich blood from the mother to the fetal inferior vena cava via the ductus venosus to the heart that pumps it into fetal circulation.
melamori03 [73]2 years ago
5 0

Answer:

fourth week of pregnancy

Explanation:

Mark me brainly please

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3 years ago
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Answer:

true

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Eating more whole foods will help you cut down on calories from the added fats and sugars we get from processed and fast foods. Whole grains. You might think the benefits of whole grains have mostly to do with fiber, but there's so much more than that

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Answer:

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Explanation:

Each wildlife creature lives in an ecosystem that their bodies can tolerate and be able to survive in.

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Hope it helps:)

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