Final answer:
Physiologic responses to acute exercise during pregnancy include increased blood volume, increased respiratory minute volume, and weight gain in the breasts and abdominal region.
Step-by-step explanation:
During pregnancy, there are several physiologic responses to acute exercise that differ from nonpregnancy. One major change is an increase in blood volume, which helps manage fetal nourishment and waste removal. This increase in blood volume also leads to a rise in pulse and blood pressure. Another change is an increase in respiratory minute volume by 50%, which helps meet the increased oxygen demands. Additionally, weight gain primarily occurs in the breasts and abdominal region, with the growing fetus, enlarged uterus, and increased blood volume contributing to the weight gain.