Q: Misconceptions about what theory contribute to the controversy that still surrounds this fundamental principle of biology? Choices: - darwin on evolution - brain of evolution - cycle of evolution - theory of evolution A:
theory of evolution

Q: What is considered to be a unique feature of echinoderms? Choices: - oil vascular system - air vascular system - iron vascular system - water vascular system A:
water vascular system

Q: Q: What is the term for land that has permanently frozen soil? Choices: - ice desert - snow-field - Arctic - permafrost A:
A: permafrost

Question: Q: What do plants respond to in their environment? Choices: - changes in sunlight or pressure - changes in temperature or water - changes in metal or water - changes in sunlight or water A:
Answer: changes in sunlight or water

*Question*
Q: The collision of what is responsible for massive earthquakes? Choices: - weather fronts - tidal currents - fault lines - two continents A:
**Answer**
two continents

Q: Q: What is the second line of defense? Choices: - rejection of foreign bodies - fight or flight - immune response - inflammatory response A:
A: inflammatory response