Q: Q: During a what type of reaction do chemical changes take place? Choices: - toxic - biological - nuclear - chemical A:
A: chemical

Q: Q: What is a double membrane of the nucleus that encloses the genetic material? Choices: - the complex envelope - the cell wall - the nuclear compression - the nuclear envelope A:
A: the nuclear envelope

Q: Q: Name the 2 types of carbohydrates? Choices: - simple and thermal - simple and nuclear - simple and structural - simple and complex A:
A: simple and complex

Q: Q: What is a mutation? Choices: - change in the distinct sequence of dna - change in the swetha sequence of dna - change in the rna sequence of dna - change in the nucleotide sequence of dna A:
A: change in the nucleotide sequence of dna