Correct me if I'm wrong but I believe it is the Gravity (or Gravitational Pull) from the Sun.
Cardiovascular features unique to the Fetus:
Fetal circulation is characterized by low systemic vascular resistance (SVR) with high systemic blood flow and high pulmonary vascular resistance with low pulmonary blood flow.
<h3>What is fetal circulation?</h3>
The embryonic circulatory system directs blood that needs oxygen through three shunts, or microscopic tunnels. These shunts are intended to avoid forming organs like the liver and lungs while the fetus is still in the womb.
The foramen ovale, which carries blood from the right atrium of the heart to the left atrium, and the ductus arteriosus, which takes blood from the pulmonary artery to the aorta, are the two shunts that bypass the lungs.
Through the placenta, the mother's blood supplies the fetus with nutrition and oxygen. The enhanced blood divides into three branches as it travels via the umbilical cord to the liver.
Learn more about fetal circulation with the help of the given link:
brainly.com/question/7191531
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The correct answer is "southerners." Sarah and Angelina Grimké's parents were slaveholders; while Sarah and Angelina never experienced slavery themselves, they viewed it firsthand, and from their own experience decided to advocate against slavery. This decision carried so much weight because overall, southerners didn't want to give up slavery.
B. By using up less calories than you take
