question 10 of 10\nhow is the circulation of a fetus different from the circulation of a baby?\na. the fetus…

question 10 of 10\nhow is the circulation of a fetus different from the circulation of a baby?\na. the fetus does not use its lungs to bring oxygen to the blood.\nb. the fetus breathes carbon dioxide instead of oxygen.\nc. the fetus has blood with no oxygen in it.\nd. the fetus does not pump blood throughout its body.

question 10 of 10\nhow is the circulation of a fetus different from the circulation of a baby?\na. the fetus does not use its lungs to bring oxygen to the blood.\nb. the fetus breathes carbon dioxide instead of oxygen.\nc. the fetus has blood with no oxygen in it.\nd. the fetus does not pump blood throughout its body.

Answer

Answer:

A. The fetus does not use its lungs to bring oxygen to the blood.

Brief Explanations:

  • In a fetus, the lungs are not functional for gas exchange. Instead, oxygen is obtained from the mother's blood through the placenta.
  • Option B is incorrect because all organisms (including fetuses) need oxygen for cellular respiration, not carbon dioxide for breathing in the sense of gas exchange for energy - production.
  • Option C is wrong as fetal blood does contain oxygen (obtained from the mother via the placenta).
  • Option D is incorrect because the fetal heart pumps blood throughout the fetal body (a key part of fetal circulation).