*Question*
Q: The distinctive appearance of what tissue is due to polysaccharides called chondroitin sulfates? Choices: - bone - collagen - membrane - cartilage A:
**Answer**
cartilage

*Question*
Q: What class of organisms help decompose matter to release nutrients and make nutritious food for other organisms ? Choices: - bacteria - yeast - coral - fungi A:
**Answer**
fungi

*Question*
Q: Which element has an atomic number of 16? Choices: - acid - methane - oxygen - sulfur A:
**Answer**
sulfur

*Question*
Q: What term is used to describe a simple diagram that shows one way energy flows through an ecosystem? Choices: - water cycle - food pyramid - fuel chain - food chain A:
**Answer**
food chain