Fact 1: All plants have a characteristic life cycle that includes alternation of generations. Fact 2: Bamboos are among the most useful of all plants. Given the two facts above, what has a characteristic life cycle that includes alternation of generations?

OPTIONS:
- flowers
- burrs
- Conifers
- bamboo
- apples
- Trees
- amoeba
- Oak

Answer: bamboo

Fact 1: Some mollusks are nearly microscopic. Fact 2: Mollusks are invertebrates and are no exception. Given the two facts above, what are nearly microscopic?

OPTIONS:
- all invertebrates
- planets
- some invertebrates
- remains of prehistoric life
- barnacles
- Veins and arteries.
- major threat to health
- all vertebrates

Answer: some invertebrates

Fact 1: Male dogs use pheromones in urine to mark their territory. Fact 2: Pheromones are natural aphrodisiacs. Given the two facts above, what do male dogs use in urine to mark their territory?

OPTIONS:
- Natural aphrodisiacs
- competing for resources
- Tails
- Urine cleaner
- Something coming from a gland
- Chemical energy
- an area swollen with pus
- Chew toys

Answer: Natural aphrodisiacs

Fact 1: If soil is permeable then water easily flows through that soil. Fact 2: H2O is the scientific name for water. Given the two facts above, what flows with ease through soil if it's permeable?

OPTIONS:
- mulch
- wind
- NaCl
- CO 2
- h2o
- oxygen
- vapor
- H20

Answer:
h2o