input with options: Answer the following question given this paragraph: CHAPTER SUMMARY 31.1 Nutritional Requirements of Plants Plants can absorb inorganic nutrients and water through their root system, and carbon dioxide from the environment. The combination of organic compounds, along with water, carbon dioxide, and sunlight, produce the energy that allows plants to grow. Inorganic compounds form the majority of the soil solution. Plants access water though the soil. Water is absorbed by the plant root, transports nutrients throughout the plant, and maintains the structure of the plant. Essential elements are indispensable elements for plant growth. They are divided into macronutrients and micronutrients. The macronutrients plants require are carbon, nitrogen, hydrogen, oxygen, phosphorus, potassium, calcium, magnesium, and sulfur. Important micronutrients include iron, manganese, boron, molybdenum, copper, zinc, chlorine, nickel, cobalt, silicon and sodium. Q: Plants can absorb inorganic nutrients and water through their root system, and what gas from the environment? A:
OPTIONS:
- hydrogen dioxide
- nitrogen dioxide
- chemical dioxide
- carbon dioxide
output: carbon dioxide

Q: Answer the following question given this paragraph: We obviously can't live without plants, but sometimes they cause us problems. Many plants are weeds. Weeds are plants that grow where people don't want them, such as gardens and lawns. They take up space and use resources, hindering the growth of more desirable plants. People often introduce plants to new habitats where they lack natural predators and parasites. The introduced plants may spread rapidly and drive out native plants. Many plants produce pollen, which can cause allergies. Plants may also produce toxins that harm human health (see Figure below ). Q: What are plants that grow where people don't want them to and can take up space and use resources which hinders growth of more desirable plants? A:

OPTIONS:
- native plants
- shrubs
- grasses
- weeds

A: weeds

input: OPTIONS:
- bacteria
- ribosomes
- chromatids
- dna Now, answer this question: Answer the following question given this paragraph: Figure 10.4 Double-stranded DNA wraps around histone proteins to form nucleosomes that have the appearance of "beads on a string. " The nucleosomes are coiled into a 30-nm chromatin fiber. When a cell undergoes mitosis, the chromosomes condense even further. Q: Double strands of what wrap around histone proteins to form nucleosomes, which are coiled into a chromatin fiber? A:
A:
output: dna

Answer the following question given this paragraph: Bacteria lack many of the structures that eukaryotic cells contain. For example, they don't have a nucleus. They also lack membrane-bound organelles, such as mitochondria or chloroplasts. The DNA of a bacterial cell is also different from a eukaryotic cell. Bacterial DNA is contained in one circular chromosome, located in the cytoplasm. Eukaryotes have several linear chromosomes. Bacteria also have two additional unique features: a cell wall and flagella. Q: Bacterial dna is contained in one circular chromosome, located where? A:

OPTIONS:
- neuron
- mucus
- cerebellum
- cytoplasm

Answer: cytoplasm

Problem: OPTIONS:
- ohm
- joule
- meter
- volt
Q: Answer the following question given this paragraph: In general, for an electric charge to move from one position to another, there must be a difference in electric potential energy between the two positions. The difference in electric potential energy is called potential difference, or voltage . Voltage is measured in an SI unit called the volt (V). For example, the terminals of the car battery in Figure below have a potential difference of 12 volts. This difference in voltage results in a spontaneous flow of charges, or electric current. Q: The difference in electric potential energy which allows for an electric charge to move from one position to another is measured by what si unit? A:
Answer: volt

Answer the following question given this paragraph: The main concern over the use of nuclear energy is the risk of radiation. Accidents at nuclear power plants can release harmful radiation that endangers people and other living things. Even without accidents, the used fuel that is left after nuclear fission reactions is still radioactive and very dangerous. It takes thousands of years for it to decay until it no longer releases harmful radiation. Therefore, used fuel must be stored securely to protect people and other living things. You can learn more about the problem of radioactive waste at this URL: http://www. youtube. com/watch?v=OPQ97LVRuuM. Q: What is the biggest risk associated with using nuclear energy? A:

OPTIONS:
- explosion
- mutation
- fire
- radiation

Answer:
radiation