Answer the following question given this paragraph: Adult frogs are characterized by long hind legs, a short body, webbed finger-like parts, and the lack of a tail. They also have a three-chambered heart, as do all tetrapods except birds and mammals. Most frogs live part of the time in water and part of the time on land. They move easily on land by jumping or climbing. To become great jumpers, frogs evolved long hind legs and long ankle bones. They also have a short backbone with only ten vertebrae. Frog and toad skin hangs loosely on the body, and skin texture can be smooth, warty, or folded. Q: Like all tetrapods except birds and mammals, frogs possess a heart with what structure? Choices: - One Chamber - four chambers - eight chambers - three chambers A:
three chambers
Answer the following question given this paragraph: For some, the exciting part of a roller coaster is speeding down; for others it is the anticipation of climbing up. While the coaster is being towed up, it is having work done on it. The work done towing it to the top of the hill becomes potential energy stored in the coaster and that potential energy is converted to kinetic energy as the coaster runs down from the top of the hill to the bottom. Q: What type of energy is used when a roller coaster runs downhill? Choices: - vibrational energy - residual energy - proportional energy - kinetic energy A:
kinetic energy
Q: Answer the following question given this paragraph: Understanding and curing genetic diseases is the ultimate goal of human geneticists. As discussed in the Human Genetics: Diagnosis and Treatment (Advanced) concept, gene therapy is the insertion of a new gene into an individual's cells and tissues to treat a disease, replacing a mutant disease-causing allele with a normal, non-mutant allele. Of course, the findings of the Human Genome Project are significant in determining the disease-causing alleles. Geneticists must know which are mutant alleles and which are non-mutant or "normal" alleles. They must also be able to identify alleles that are not just associated with a particular disease phenotype, but cause a disease phenotype. And of course, scientists must develop and test the technology to replace mutant alleles. Q: For geneticists, the findings of what massive undertaking are significant in determining disease-causing alleles? Choices: - human produce project - Visible Human Project - human organisms project - human genome project A:
A: human genome project
Question: Answer the following question given this paragraph: Polarization leads to the buildup of electric charges on objects. This buildup of charges is known as static electricity . Once an object becomes charged, it is likely to remain charged until another object touches it or at least comes very close to it. That's because electric charge cannot travel easily through air, especially if the air is dry. Q: What leads to the buildup of electric charges on objects? Choices: - movement - gravity - rotation - polarization A:
Answer: polarization
*Question*
Answer the following question given this paragraph: Q: Despite its small size, an erythrocyte contains about 250 million molecules of what? Choices: - calcium - plasma - potassium - hemoglobin A:
**Answer**
hemoglobin
Q: Answer the following question given this paragraph: The image above is of a copper plate that was made in 1893. The utensil has a great deal of elaborate decoration and the item is very useful. What would have happened if we decided that copper (I) chloride was just as good a material (well, it does have copper in it). The CuCl would end up as a powder when we pounded on it to shape it. Metals behave in unique ways. The bonding that occurs in a metal is responsible for its distinctive properties: luster, malleability, ductility, and excellent conductivity. Q: Luster, malleability, ductility, and conductivity are all properties of which kind of material? Choices: - ores - wood - nonmetals - metals A:
A: metals