Answer the following question given this paragraph: Burning and other changes in matter do not destroy matter. The mass of matter is always the same before and after the changes occur. Q: How does burning matter affect its mass? A:
OPTIONS:
- the mass quadruples
- the mass increases
- the mass decreases
- the mass remains the same

Answer: the mass remains the same

Question: Answer the following question given this paragraph: Proteins are biochemical compounds that consist of one or more chains of small molecules called amino acids. Amino acids are the monomers of proteins. There are only about 20 different amino acids. The sequence of amino acids in chains and the number of chains in a protein determine the protein's shape. Shapes may be very complex. You can learn more about the shapes of proteins at this link:. Q: What is the name for biochemical compounds that consist of one or more chains of small molecules called amino acids? A:
OPTIONS:
- lipids
- protons
- hormones
- proteins
Answer: proteins

input with options: Answer the following question given this paragraph: In physics, resistance is opposition to the flow of electric charges in an electric current as it travels through matter. The SI unit for resistance is the ohm. Resistance occurs because moving electrons in current bump into atoms of matter. Resistance reduces the amount of electrical energy that is transferred through matter. That's because some of the electrical energy is absorbed by the atoms and changed to other forms of energy, such as heat. You can see an animation of resistance at the level of atoms and electrons at this URL: http://www. physics. org/explorelink. asp?id=1738&q=electricalresistance&currentpage=1&age=0&knowledge=0&item=3. Q: In physics, resistance is opposition to the flow of what? A:
OPTIONS:
- temperature charges
- capacitance
- surface flow
- electrical charges
output: electrical charges

Q: Answer the following question given this paragraph: Radon is also radioactive and can easily be inhaled into the lungs. Over time, this internal radon exposure can lead to the development of lung cancer. The incidence of lung cancer in smokers exposed to radon is much higher than that in non-smokers exposed to radon since smoking has already produced some lung damage, and the radon simply makes the damage worse. Radon exposure is highest in homes lacking good air circulation to move the gas out of the residence. There are a number of inexpensive approaches to decreasing your exposure to radon. A good start is to test your living area for radon with a radon test kit. Q: Smoking increases the risk of cancer from what radioactive gas that can also be detected with a test kit for your home? A:

OPTIONS:
- arsenic
- carbon monoxide
- carbon dioxide
- radon

A: radon

input: OPTIONS:
- vagina
- uterus
- ovaries
- placenta Now, answer this question: Answer the following question given this paragraph: The placenta takes over the synthesis and secretion of progesterone throughout pregnancy as the corpus luteum degenerates. Like estrogen, progesterone suppresses FSH and LH. It also inhibits uterine contractions, protecting the fetus from preterm birth. This hormone decreases in late gestation, allowing uterine contractions to intensify and eventually progress to true labor. The placenta also produces hCG. In addition to promoting survival of the corpus luteum, hCG stimulates the male fetal gonads to secrete testosterone, which is essential for the development of the male reproductive system. The anterior pituitary enlarges and ramps up its hormone production during pregnancy, raising the levels of thyrotropin, prolactin, and adrenocorticotropic hormone (ACTH). Thyrotropin, in conjunction with placental hormones, increases the production of thyroid hormone, which raises the maternal metabolic rate. This can markedly augment a pregnant woman's appetite and cause hot flashes. Prolactin stimulates enlargement of the mammary glands in preparation for milk production. ACTH stimulates maternal cortisol secretion, which contributes to fetal protein synthesis. In addition to the pituitary hormones, increased parathyroid levels mobilize calcium from maternal bones for fetal use. Q: What takes over the synthesis and secretion of progesterone throughout pregnancy as the corpus luteum degenerates? A:
A:
output: placenta

Question: Answer the following question given this paragraph: In science, a law is a mathematical relationship that exists between observations under a given set of conditions. There is a fundamental difference between observations of the physical world and explanations of the nature of the physical world. Hypotheses and theories are explanations, whereas laws and measurements are observational. Q: In science, what do we call a mathematical relationship that exists between observations under a given set of conditions? A:
OPTIONS:
- idea
- theory
- fact
- law
Answer:
law