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

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: 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: Q: What leads to the buildup of electric charges on objects? Choices: - movement - gravity - rotation - polarization A:
Answer: polarization

*Question*
Q: Despite its small size, an erythrocyte contains about 250 million molecules of what? Choices: - calcium - plasma - potassium - hemoglobin A:
**Answer**
hemoglobin

Q: Q: Luster, malleability, ductility, and conductivity are all properties of which kind of material? Choices: - ores - wood - nonmetals - metals A:
A: metals