Q: Answer the following question given this paragraph: Reptiles can be found on every continent except Antarctica. Q: Reptiles can be found on every continent except which one? A:

OPTIONS:
- south america
- africa
- australia
- antarctica

A: antarctica

input: OPTIONS:
- cardiovascular system
- respiratory system
- muscular system
- nervous system Now, answer this question: Answer the following question given this paragraph: described in the chapter on muscle tissue, an action potential travels along the motor neuron axon into the periphery. The axon terminates on muscle fibers at the neuromuscular junction. Acetylcholine is released at this specialized synapse, which causes the muscle action potential to begin, following a large potential known as an end plate potential. When the lower motor neuron excites the muscle fiber, it contracts. All of this occurs in a fraction of a second, but this story is the basis of how the nervous system functions. Q: The axon terminates on muscle fibers at the neuromuscular junction. acetylcholine is released at this specialized synapse, which causes the muscle action potential to begin, following a large potential known as an end plate potential. when the lower motor neuron excites the muscle fiber, it contracts. all of this occurs in a fraction of a second, but this story is the basis of how this functions? A:
A:
output: nervous system

Answer the following question given this paragraph: (b) Write a balanced chemical equation showing the products of the dissolution of Fe(NO3)3. Compare the processes that occur when methanol (CH3OH), hydrogen chloride (HCl), and sodium hydroxide (NaOH) dissolve in water. Write equations and prepare sketches showing the form in which each of these compounds is present in its respective solution. What is the expected electrical conductivity of the following solutions? (a) NaOH(aq) (b) HCl(aq) (c) C6H12O6(aq) (glucose) (d) NH3(l) 14. Why are most solid ionic compounds electrically nonconductive, whereas aqueous solutions of ionic compounds are good conductors? Would you expect a liquid (molten) ionic compound to be electrically conductive or nonconductive? Explain. Indicate the most important type of intermolecular attraction responsible for solvation in each of the following solutions: (a) the solutions in Figure 11.8 (b) methanol, CH3OH, dissolved in ethanol, C2H5OH (c) methane, CH4, dissolved in benzene, C6H6 (d) the polar halocarbon CF2Cl2 dissolved in the polar halocarbon CF2ClCFCl2 (e) O2(l) in N2(l) 11.3 Solubility 16. Suppose you are presented with a clear solution of sodium thiosulfate, Na2S2O3. How could you determine whether the solution is unsaturated, saturated, or supersaturated? 17. Supersaturated solutions of most solids in water are prepared by cooling saturated solutions. Supersaturated solutions of most gases in water are prepared by heating saturated solutions. Explain the reasons for the difference in the two procedures. Suggest an explanation for the observations that ethanol, C2H5OH, is completely miscible with water and that ethanethiol, C2H5SH, is soluble only to the extent of 1.5 g per 100 mL of water. Calculate the percent by mass of KBr in a saturated solution of KBr in water at 10 C. See Figure 11.17 for useful data, and report the computed percentage to one significant digit. Which of the following gases is expected to be most soluble in water? Explain your reasoning. (a) CH4 (b) CCl4. Q: Supersaturated solutions of most solids in water are prepared by cooling what? A:

OPTIONS:
- mineral solutions
- dense solutions
- plasma solutions
- saturated solutions

Answer: saturated solutions

Problem: OPTIONS:
- invertebrate structure
- parasitic structure
- primordial structure
- vestigial structure
Q: Answer the following question given this paragraph: Some of the most interesting evidence for evolution comes from vestigial structures . These are body parts that are no longer used but are still present in modern organisms. Examples in humans include tail bones and the appendix. Q: What is the tail bone an example of? A:
Answer: vestigial structure

Problem:OPTIONS:
- structural pigments
- muscular pigments
- fat pigments
- respiratory pigments

Answer the following question given this paragraph: Q: What circulates with the blood or hemolymph and are often contained within specialized cells A:
****
A: respiratory pigments

Problem:OPTIONS:
- magnesium ions
- sodium ions
- lithium ions
- hydrogen ions

Answer the following question given this paragraph: Buffer Systems in the Body The buffer systems in the human body are extremely efficient, and different systems work at different rates. It takes only seconds for the chemical buffers in the blood to make adjustments to pH. The respiratory tract can adjust the blood pH upward in minutes by exhaling CO2 from the body. The renal system can also adjust blood pH through the excretion of hydrogen ions (H+) and the conservation of bicarbonate, but this process takes hours to days to have an effect. The buffer systems functioning in blood plasma include plasma proteins, phosphate, and bicarbonate and carbonic acid buffers. The kidneys help control acid-base balance by excreting hydrogen ions and generating bicarbonate that helps maintain blood plasma pH within a normal range. Protein buffer systems work predominantly inside cells. Q: The kidneys help control acid-base balance by excreting _____ and generating bicarbonate that helps maintain blood plasma ph within a normal range? A:
****
A:
hydrogen ions