Q: Q: What astronomical phenomenon, formed of split asteroids or planetary rocks, provides clues about our solar system? A: | OPTIONS:
- galaxies
- comets
- stars
- meteorites
A: meteorites

Q: Q: Skeletal muscle cells and cardiac muscle cells share what property, which is not shared by smooth muscle cells? A: | OPTIONS:
- surfaces
- overlap
- filaments
- striations
A: striations

Q: Q: Which model helps explain molecules with double or triple bonds? A: | OPTIONS:
- salinity model
- reactivity model
- particle model
- hybridization model
A: hybridization model

Q: Q: What supports the scapula, transmits the weight and forces from the upper limb to the body trunk, and protects the underlying nerves and blood vessels? A: | OPTIONS:
- bladder
- pelvis
- cranium
- clavicle
A: clavicle