2 years ago

State two reasons why the fetal blood must not mix with the maternal blood?

1 answer:

7 0

Answer:During pregnancy, red blood cells from the unborn baby can cross into the mother's blood through the placenta. If the mother is Rh-negative, her immune system treats Rh-positive fetal cells as if they were a foreign substance. The mother's body makes antibodies against the fetal blood cells

Explanation:

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6. Type of energy that can travel through space in the form of waves.

olga nikolaevna [1]

Answer: u can say either Radiant energy or electromagnetic waves

Explanation:

Radiant energy is the energy of electromagnetic waves. These waves can travel through space.

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3 years ago

Which physical property is best measured using only a balance?

FromTheMoon [43]

Answer: