input: OPTIONS:
- green water
- dirty water
- salty water
- pure water Now, answer this question: Answer the following question given this paragraph: 30.5 Transport of Water and Solutes in Plants Water potential () is a measure of the difference in potential energy between a water sample and pure water. The water potential in plant solutions is influenced by solute concentration, pressure, gravity, and matric potential. Water potential and transpiration influence how water is transported through the xylem in plants. These processes are regulated by stomatal opening and closing. Photosynthates (mainly sucrose) move from sources to sinks through the plant's phloem. Sucrose is actively loaded into the sieve-tube elements of the phloem. The increased solute concentration causes water to move by osmosis from the xylem into the phloem. The positive pressure that is produced pushes water and solutes down the pressure gradient. The sucrose is unloaded into the sink, and the water returns to the xylem vessels. Q: Transport of water and solutes in plants water potential is a measure of the difference in potential energy between a water sample and this? A:
A:
output: pure water

Answer the following question given this paragraph: An aldehyde is a carbonyl in which the carbon atom is bonded to one carbon atom and one hydrogen atom (or two hydrogen atoms, see below). Because the hydrogen atom is so small, the partial positive charge on the carbonyl carbon is very easy for other molecules to approach, making aldehydes a particularly reactive type of carbonyl. Aldehydes are versatile reactants for a wide variety of organic syntheses. Many aldehydes also have distinctive flavors and aromas. For example, the flavor of cinnamon is primarily due to the molecule cinnamaldehyde, and vanillin is the aldehyde most responsible for the smell and taste of vanilla extract. Q: Name a carbonyl in which the carbon atom is bonded to one carbon atom and one hydrogen atom (or two hydrogen atoms). A:

OPTIONS:
- ketone
- acetylcholine
- ester
- aldehyde

Answer: aldehyde

Problem: OPTIONS:
- three
- it varies
- two
- four
Q: Answer the following question given this paragraph: Mammals are endothermic vertebrates with four limbs. Examples of mammals include bats, whales, mice, and humans. Clearly, mammals are a very diverse group. Nonetheless, they share several traits that set them apart from other vertebrates. Q: How many limbs do all mammals have? A:
Answer: four

Problem:OPTIONS:
- spine and lungs
- brain and heart
- heart and lungs
- brain and spinal cord

Answer the following question given this paragraph: The central nervous system is made up of the brain and the spinal cord. Q: What makes up the central nervous system? A:
****
A: brain and spinal cord

Answer the following question given this paragraph: Brain and spinal cord injuries most commonly occur because of car crashes or athletic activities. Fortunately, many injuries can be prevented by wearing seat belts and safety helmets (see Figure below ). Avoiding unnecessary risks, such as doing stunts on a bike or diving into shallow water, can also reduce the chances of brain and spinal cord injuries. Q: What are the two most common common ways that brain and spinal cord injuries occur? A:
OPTIONS:
- falls and surgical error
- sports and household accidents
- car crashes and falls
- car crashes and athletic activities
car crashes and athletic activities

Answer the following question given this paragraph: Purification of water for drinking and other uses is a complicated process. Heavy metals need to be removed, a process accomplished by addition of carbonates and sulfates. Lead contamination can present major health problems, especially for younger children. Lead sulfates and carbonates are very insoluble, so will precipitate out of solution very easily. Q: Is purifying water a simple or complicated process? A:
OPTIONS:
- expensive
- impossible
- simple
- complicated

Answer:
complicated