Q: Q: Particles of sand and what other substance are carried by longshore drift? A: | OPTIONS:
- magma
- bone
- soil
- rock
A: rock

Q: Q: For most waves, energy is proportional to what, a term that describes the height of the wave? A: | OPTIONS:
- wave frequency
- wave volume
- wave threshold
- wave amplitude
A: wave amplitude

Q: Q: In which specific organs are hormonal cells located? A: | OPTIONS:
- mammary glands
- lymph nodes
- spinal cord
- endocrine glands
A: endocrine glands

Q: Q: What regulates homeostasis and basic survival behaviors? A: | OPTIONS:
- hippocampus
- mitosis
- cell membrane
- hypothalamus
A: hypothalamus