Q: Q: A lens of what shape causes rays of light to diverge, or spread apart, as they pass through it? A: | OPTIONS:
- convex
- flat
- elongated
- concave
A: concave

Q: Q: The main components of the circulatory system are the heart, blood vessels, and what else? A: | OPTIONS:
- lungs
- nerves
- brain
- blood
A: blood

Q: Q: Vascular plants evolved what basic structures to collect sunlight? A: | OPTIONS:
- flowers
- stems
- roots
- leaves
A: leaves

Q: Q: Independent assortment occurs when what go to opposite poles of the cell in anaphase i? A: | OPTIONS:
- receptors
- ballasts
- prokaryotes
- chromosomes
A: chromosomes