Q: When do alkane reactions usually occur? Choices: - underwater - at high altitudes - in cold climates - under extreme conditions A:
under extreme conditions

Q: What cannot be created or destroyed in a chemical reaction? Choices: - heat - mass - energy - matter A:
matter

Q: Q: What is the scientific term for climates with the least moisture? Choices: - mediterannean - tropical - polar - arid A:
A: arid

Question: Q: What is used in the growth, development, functioning and reproduction of all known living organisms and many viruses? Choices: - viruses - bacteria - enzymes - dna A:
Answer: dna

*Question*
Q: Hydrocarbons are combined with oxygen in a series of enzymatic steps to product water, carbon dioxide, and energy, which is stored in the form of what? Choices: - energy - dormant molecules - light - reactive molecules A:
**Answer**
reactive molecules

Q: Amniotes are animals that produce eggs with membranes possessing what property, which allowed them to lay eggs on land? Choices: - absorbent - heavy - hard - waterproof A:
waterproof