Answer the following question given this paragraph: Labor and Birth Labor is the physical efforts of expulsion of the fetus and the placenta from the uterus during birth (parturition). Toward the end of the third trimester, estrogen causes receptors on the uterine wall to develop and bind the hormone oxytocin. At this time, the baby reorients, facing forward and down with the back or crown of the head engaging the cervix (uterine opening). This causes the cervix to stretch and nerve impulses are sent to the hypothalamus, which signals for the release of oxytocin from the posterior pituitary. The oxytocin causes the smooth muscle in the uterine wall to contract. At the same time, the placenta releases prostaglandins into the uterus, increasing the contractions. A positive feedback relay occurs between the uterus, hypothalamus, and the posterior pituitary to assure an adequate supply of oxytocin. As more smooth muscle cells are recruited, the contractions increase in intensity and force. There are three stages to labor. During stage one, the cervix thins and dilates. This is necessary for the baby and placenta to be expelled during birth. The cervix will eventually dilate to about 10 cm. During stage two, the baby is expelled from the uterus. The uterus contracts and the mother pushes as she compresses her abdominal muscles to aid the delivery. The last stage is the passage of the placenta after the baby has been born and the organ has completely disengaged from the uterine wall. If labor should stop before stage two is reached, synthetic oxytocin, known as Pitocin, can be administered to restart and maintain labor. An alternative to labor and delivery is the surgical delivery of the baby through a procedure called a Caesarian section. This is major abdominal surgery and can lead to post-surgical complications for the mother, but in some cases it may be the only way to safely deliver the baby. Q: What kind of relay occurs between the uterus, hypothalamus, and the posterior pituitary to assure an adequate supply of the hormone oxytocin during childbirth? A:
OPTIONS:
- pressure feedback
- affirmative feedback
- currents feedback
- positive feedback

Answer: positive feedback

Question: Answer the following question given this paragraph: Q: Every chemical reaction between molecules involves breaking and forming of what? A:
OPTIONS:
- orbits
- ions
- atomic pathways
- bonds
Answer: bonds

input with options: Answer the following question given this paragraph: Q: What are the layered rocks that form when certain prokaryotes bind thin films of sediment together? A:
OPTIONS:
- stalagmites
- quartzes
- stalactites
- stomatolites
output: stomatolites

Q: Answer the following question given this paragraph: A mirror is typically made of glass with a shiny metal backing that reflects all the light that strikes it. When a mirror reflects light, it forms an image. An image is a copy of an object that is formed by reflection or refraction. Mirrors may have flat or curved surfaces. The shape of a mirror's surface determines the type of image it forms. For example, some mirrors form real images, and other mirrors form virtual images. What's the difference between real and virtual images?. Q: What is a copy of an image formed by reflection or refraction? A:

OPTIONS:
- an example
- a photographic image
- a mirror image
- an image

A: an image

input: OPTIONS:
- ovaries
- intestines
- liver
- lungs Now, answer this question: Answer the following question given this paragraph: Asthma is a disease in which the air passages of the lungs periodically become too narrow, often with excessive mucus production. This causes difficulty breathing, coughing, and chest tightness. An asthma attack may be triggered by allergens, strenuous exercise, stress, or other factors. Q: What organ does asthma periodically cause to narrow? A:
A:
output: lungs

Question: Answer the following question given this paragraph: 5.2 Drag Forces 5. Athletes such as swimmers and bicyclists wear body suits in competition. Formulate a list of pros and cons of such suits. Two expressions were used for the drag force experienced by a moving object in a liquid. One depended upon the speed, while the other was proportional to the square of the speed. In which types of motion would each of these expressions be more applicable than the other one? 7. As cars travel, oil and gasoline leaks onto the road surface. If a light rain falls, what does this do to the control of the car? Does a heavy rain make any difference? 8. Why can a squirrel jump from a tree branch to the ground and run away undamaged, while a human could break a bone in such a fall?. Q: Athletes such as swimmers and bicyclists wear body suits in competition to minimize what forces? A:
OPTIONS:
- natural forces
- rolling forces
- activity forces
- drag forces
Answer:
drag forces