Answer the following question given this paragraph: Q: When the number of active receptors falls below that threshold, what happens to the cellular response? A:
OPTIONS:
- it responds
- it increases
- it stabilizes
- it ceases
it ceases

Answer the following question given this paragraph: Diffusion can occur across a semipermeable membrane, such as the cell membrane, as long as a concentration gradient exists. Molecules will continue to flow in this manner until equilibrium is reached. At equilibrium, there is no longer an area of high concentration or low concentration, and molecules flow equally in both directions across the semipermeable membrane. At equilibrium, equal amounts of a molecule are entering and leaving a cell. Q: Diffusion can occur across a semipermeable membrane, such as the cell membrane, as long as a what exists? A:
OPTIONS:
- polarity
- parity
- differential
- concentration gradient

Answer: concentration gradient

Question: Answer the following question given this paragraph: In a hydrogen replacement reaction, the hydrogen in the acid is replaced by an active metal. Q: In a hydrogen replacement reaction, the hydrogen in the acid is replaced by what? A:
OPTIONS:
- gas
- water
- oxygen
- an active metal
Answer: an active metal

input with options: Answer the following question given this paragraph: Conducting wires have a small electrical resistance. The electrical resistance of a conducting wire is related to the type of metal used and inversely related to the cross-sectional area of the wire. The larger the diameter of a wire, the greater the cross-sectional area, and the lower the electrical resistance will be. When electrons flow through a wire, they repel each other and interfere with the passage of other electrons. If there are a very large number of electrons passing through a wire with small diameter, the electrons will experience a greater resistance than if the wire diameter were larger and the electrons had more space between them. Q: Conducting wires have a small degree of what? A:
OPTIONS:
- magnetism
- insulation
- heat
- electrical resistance
output: electrical resistance

Q: Answer the following question given this paragraph: Q: Which part of the axon has a higher membrane potential? A:

OPTIONS:
- muscular hillock
- biofilm hillock
- canals hillock
- axon hillock

A: axon hillock

Answer the following question given this paragraph: Sensory-Somatic Nervous System The sensory-somatic nervous system is made up of cranial and spinal nerves and contains both sensory and motor neurons. Sensory neurons transmit sensory information from the skin, skeletal muscle, and sensory organs to the CNS. Motor neurons transmit messages about desired movement from the CNS to the muscles to make them contract. Without its sensorysomatic nervous system, an animal would be unable to process any information about its environment (what it sees, feels, hears, and so on) and could not control motor movements. Unlike the autonomic nervous system, which has two synapses between the CNS and the target organ, sensory and motor neurons have only one synapseone ending of the neuron is at the organ and the other directly contacts a CNS neuron. Acetylcholine is the main neurotransmitter released at these synapses. Humans have 12 cranial nerves, nerves that emerge from or enter the skull (cranium), as opposed to the spinal nerves, which emerge from the vertebral column. Each cranial nerve is accorded a name, which are detailed in Figure 35.28. Some cranial nerves transmit only sensory information. For example, the olfactory nerve transmits information about smells from the nose to the brainstem. Other cranial nerves transmit almost solely motor information. For example, the oculomotor nerve controls the opening and closing of the eyelid and some eye movements. Other cranial nerves contain a mix of sensory and motor fibers. For example, the glossopharyngeal nerve has a role in both taste (sensory) and swallowing (motor). Q: Motor neurons and sensory neurons are part of what nervous system? A:
OPTIONS:
- peripheral
- central
- autonomic
- sensory-somatic
sensory-somatic