Q: As a polycrystalline material solidifies, grains with irregular shapes form. the interfaces between grains constitute grain what? Choices: - waves - patterns - obstacles - boundaries A:
boundaries

Q: Aldehydes and ketones can work weak hydrogen bonds with water through what atom? Choices: - basalt oxygen atom - pyridinium oxygen atom - carbon carbon atom - carbonyl oxygen atom A:
carbonyl oxygen atom

Q: Q: The end of a pine tree branch bears the male cones that produce what? Choices: - the ovaries - oxygen - the stigmas - the pollen A:
A: the pollen

Question: Q: Strong bands of dense, regular connective tissue that connect muscles to bones are called what? Choices: - membranes - cartilage - veins - tendons A:
Answer: tendons

*Question*
Q: What type of cells capture light energy, and use carbon dioxide as their carbon source? Choices: - sporozoans - blood cells - chloroplasts - photoautotrophs A:
**Answer**
photoautotrophs

Q: What forms in the ocean from the seafloor spreading? Choices: - underwater volcanoes - tsunamis - earthquakes - new oceanic crust A:
new oceanic crust