input: OPTIONS:
- sound
- sensory neurons
- Decibels
- electronic waves
- progesterone
- Vibrates
- pheromones
- radio waves Now, answer this question: Fact 1: Ants communicate with chemicals called pheromones. Fact 2: Ants are of extreme importance in the insect world. Given the two facts above, how do some insects communicate?
A:
output: pheromones

input: OPTIONS:
- gastropod shells
- orchids
- invertebrates
- swamp vegetation
- Most plants
- insects
- barnacles
- animals Now, answer this question: Fact 1: Mollusks are a major food source for other organisms, including humans. Fact 2: Mollusks are invertebrates and are no exception. Given the two facts above, what is a major food source for other organisms, including humans?
A:
output: invertebrates

input: OPTIONS:
- loose soil
- ice storms
- rain
- soils
- tidal waves
- cloud cover
- erosion
- flowing Now, answer this question: Fact 1: Avalley is formed by a river flowing. Fact 2: Rivers flow in the wilderness. Given the two facts above, a valley is formed by what in the wilderness?
A:
output:
flowing