Q: Wood consists of mainly what kind of walls? Choices: - aquatic - primary - chaotic - secondary A:
secondary

Q: In how many ways ca a living organism obtain chemical energy Choices: - three - seven - four - two A:
two

Q: Q: Bacteria can be chemotrophs, which obtain what by breaking down chemical compounds in their environment? Choices: - waste - chemials - food - energy A:
A: energy

Question: Q: The process of photosynthesis ultimately gets powered by what kind of energy? Choices: - biofuel - electricity - nonrenewable energy - light A:
Answer: light

*Question*
Q: What is the critical factor for the survival of segmented worms? Choices: - sunlight and water - humidity and sunlight - sunlight and warmth - water and humidity A:
**Answer**
water and humidity

*Question*
Q: What is the acid that is released by the stomach that kills most pathogens that enter the stomach? Choices: - Nitric Acid - Hydrofluoric Acid - Sulfuric Acid - hydrochloric acid A:
**Answer**
hydrochloric acid