Q: What do most organisms eat in the profundal zone of a lake? A:
OPTIONS:
- fresh organisms
- algae organism
- fish waste
- dead organisms

Answer: dead organisms

Q: A crucial function of the cranial nerves is to keep visual stimuli centered on the fovea of what eye structure? A:
OPTIONS:
- iris
- scelra
- pupil
- retina

Answer: retina

Q: What do you call compounds that have covalent bonds? A:
OPTIONS:
- reflectivity compounds
- valence compound
- ions
- covalent compounds

Answer:
covalent compounds