Question: Q: The wave on a guitar string is transverse. the sound wave rattles a sheet of paper in a direction that shows the sound wave is what? A:
OPTIONS:
- obtuse
- lateral
- magnetic
- longitudinal
Answer: longitudinal

input with options: Q: Viruses depend on what type of cells? A:
OPTIONS:
- blood cells
- immune system cells
- anchor cells
- host cells
output: host cells

Q: Q: What do hydrophilic substances have an affinity for? A:

OPTIONS:
- air
- soil
- heat
- water

A: water

input: OPTIONS:
- artificial preservatives
- factor reactions
- radiation reactions
- chemical reactions Now, answer this question: Q: What causes maple leaves to change their colors? A:
A:
output: chemical reactions

Q: Each microspore develops into a pollen grain containing a male what? A:

OPTIONS:
- progesterone
- zygote
- sperm
- gametophyte

Answer: gametophyte

Q: Q: What is it called when pollen from one plant fertilizes another plant of the same species? A:

OPTIONS:
- cross-typing
- cross-breeding
- cross - vegetation
- cross-pollination

A:
cross-pollination