Q: What is the nickname of the best-known geyser in the world, which erupts reliably every 90 minutes? Choices: - old energetic - old consistent - victoria falls - old faithful A:
old faithful

Q: How many pairs of upper jaws do insects have? Choices: - four pairs - six pairs - three pairs - two pairs A:
two pairs

Q: Q: What is the name for biochemical compounds that consist of one or more chains of small molecules called amino acids? Choices: - lipids - protons - hormones - proteins A:
A: proteins

Question: Q: Which competition leads to one species going extinct or both becoming more specialized? Choices: - intraspecific - beneficial - mimicry - interspecific A:
Answer: interspecific

*Question*
Q: Veins subdivide repeatedly and branch throughout what? Choices: - periosteum - epidermis - stroma - mesophyll A:
**Answer**
mesophyll

Q: Q: What elements do mafic minerals typically include? Choices: - iodine and magnesium - sodium and magnesium - xerophyte and magnesium - iron and magnesium A:
A: iron and magnesium