input with options: Answer the following question given this paragraph: The marsupial embryo is nourished inside the uterus with food from a yolk sac instead of through a placenta. The yolk sac stores enough food for the short period of time the embryo remains in the uterus. After the embryo is born, it moves into the mother's pouch, where it clings to a nipple. It remains inside the pouch for several months while it continues to grow and develop. Even after the offspring is big enough to leave the pouch, it may often return to the pouch for warmth and nourishment ( Figure below ). Eventually, the offspring is mature enough to remain outside the pouch on its own. Q: A yolk sac replaces what structure for nourishing a marsupial embryo? A:
OPTIONS:
- uterus
- glucose
- Stomach
- placenta
output: placenta

Q: Answer the following question given this paragraph: During metamorphism a rock may change chemically. Ions move and new minerals form. The new minerals are more stable in the new environment. Extreme pressure may lead to physical changes like foliation . Foliation forms as the rocks are squeezed. If pressure is exerted from one direction, the rock forms layers. This is foliation. If pressure is exerted from all directions, the rock usually does not show foliation. Q: Foliation, which forms layers in rocks during metamorphism, is caused by what? A:

OPTIONS:
- Pulling
- power
- push
- pressure

A: pressure

input: OPTIONS:
- uneven
- sudden
- rapid
- slow Now, answer this question: Answer the following question given this paragraph: Usually evolutionary changes occur at a very slow pace. Human evolution took millions of years. However, sometimes evolution can also happen quite quickly. Q: Human evolution shows that evolutionary changes typically occur at what pace? A:
A:
output: slow

Answer the following question given this paragraph: The molecular mass is the sum of the masses of the atoms in the formula. Q: The sum of the masses of the atoms in the formula is referred to as what? A:

OPTIONS:
- nucleus mass
- magnetic mass
- atomic mass
- molecular mass

Answer: molecular mass

Problem: OPTIONS:
- assimilation
- fraternization
- purebreed
- hybridization
Q: Answer the following question given this paragraph: Mendel first worked with plants that differed in a single characteristic, such as flower color. A hybridization is a cross between two individuals that have different traits. A hybridization in which only one characteristic is examined is called a monohybrid cross . The offspring of such a cross are called monohybrids. Mendel noted that hybridizing true-breeding (P generation) plants gave rise to an F 1 generation that showed only one trait of a characteristic. For example, a true-breeding purple-flowering plant crossed with a true-breeding white-flowering plant always gave rise to purple-flowered hybrid plants. There were no white-flowered hybrids. Mendel wanted to know what happened to the white-flowers. If indeed a "heritable factor" for white-flower had disappeared, all future offspring of the hybrids would be purple-flowered - none would be white. To test this idea, Mendel let the F 1 generation plants self-pollinate and then planted the resulting seeds. Q: What term is used to describe a cross between two individuals that have different traits? A:
Answer: hybridization

Answer the following question given this paragraph: Efforts to control population growth led to the one-child policy in China, which used to include more severe consequences, but now imposes fines on urban couples who have more than one child. Due to the fact that some couples wish to have a male heir, many Chinese couples continue to have more than one child. The policy itself, its social impacts, and the effectiveness of limiting overall population growth are controversial. In spite of population control policies, the human population continues to grow. At some point the food supply may run out because of the subsequent need to produce more and more food to feed our population. The United Nations estimates that future world population growth may vary from 6 billion (a decrease) to 16 billion people by the year 2100. There is no way to know whether human population growth will moderate to the point where the crisis described by Dr. Ehrlich will be averted. Another result of population growth is the endangerment of the natural environment. Many countries have attempted to reduce the human impact on climate change by reducing their emission of the greenhouse gas carbon dioxide. However, these treaties have not been ratified by every country, and many underdeveloped countries trying to improve their economic condition may be less likely to agree with such provisions if it means slower economic development. Furthermore, the role of human activity in causing climate change has become a hotly debated socio-political issue in some developed countries, including the United States. Thus, we enter the future with considerable uncertainty about our ability to curb human population growth and protect our environment. Q: Many countries have attempted to reduce the human impact on climate change by reducing their emission of what greenhouse gas? A:

OPTIONS:
- methane
- acid dioxide
- nitrous oxide
- carbon dioxide

Answer:
carbon dioxide