Q: What happens when materials return to their original shape? Read this paragraph and choose the correct option from the provided answers: Elastic rebound occurs when materials return to their original shape. Choices: - reverberation - second life - restoration principle - elastic rebound A:
elastic rebound

Q: Which region of dna consists of one or more genes that encode the proteins needed for a specific function? Read this paragraph and choose the correct option from the provided answers: Regulation of transcription in prokaryotes typically involves operons. An operon is a region of DNA that consists of one or more genes that encode the proteins needed for a specific function. The operon also includes a promoter and an operator. The operator is a region of the operon where regulatory proteins bind. It is located near the promoter and helps regulate transcription of the operon genes. Choices: - mRNA - chromosome - antigen - operon A:
operon

Q: Q: What is the basis of enzyme classification? Read this paragraph and choose the correct option from the provided answers: Enzymes are classified by the types of reactions that they catalyze. Choices: - their shape - their color - their mass - reactions they catalyze A:
A: reactions they catalyze

Question: Q: What moves nitrogen back and forth between the atmosphere and organisms? Read this paragraph and choose the correct option from the provided answers: The nitrogen cycle moves nitrogen back and forth between the atmosphere and organisms. Choices: - the calcium cycle - the Krebs cycle - the leakage cycle - the nitrogen cycle A:
Answer: the nitrogen cycle

*Question*
Q: What are broken down during digestion to provide the amino acids needed for protein synthesis? Read this paragraph and choose the correct option from the provided answers: Dietary proteins are broken down during digestion to provide the amino acids needed for protein synthesis. Any extra proteins in the diet not needed for this purpose are used for energy or stored as fat. One gram of proteins provides 4 Calories of energy. Eating protein provides the amino acids for your cells to produce your own antibodies, muscle fibers and enzymes (as well as many other types of proteins). Choices: - sugars - carbohydrates - metabolytes - dietary proteins A:
**Answer**
dietary proteins

*Question*
Q: A binary molecular compound is a molecular compound that is composed of what? Read this paragraph and choose the correct option from the provided answers: A binary molecular compound is a molecular compound that is composed of two elements. In general, the elements that combine to form binary molecular compounds are both nonmetals. This contrasts with ionic compounds, which usually involve bonds between metal ions and nonmetal ions. Because ionic charges cannot be used to name these compounds or to write their formulas, a different naming system must be used for molecular compounds. Another difference between ionic and molecular compounds is that two nonmetal atoms will frequently combine with one another in a variety of ratios. For example, nitrogen and oxygen combine to make several binary compounds, including NO, NO 2 , and N 2 O. Obviously they can't all be called nitrogen oxide! How would someone know which one you were talking about? Each of the three compounds has very different properties and reactivity. A system to distinguish between compounds such as these is necessary. Choices: - two atoms - four atoms - four elements - two elements A:
**Answer**
two elements