If ferns have a characteristic life cycle that includes alternation of generations, then what has a characteristic life cycle that includes alternation of generations? Answer choices: - humans - leaves - Oak - dogs - Trees - cacti - amoeba - ferns
ferns

If bacteria can cause bodily tissues to swell, then bacteria can cause what? Answer choices: - common cold - dead organisms - influenza - viral infections - bodily tissues to swell - contamination - Something that causes allergies - harmful substances
bodily tissues to swell

Q: If treating water is used to remove arsenic before drinking, then what is treating water used to remove before drinking? Answer choices: - arsenic - air - cellulose - chemicals - Collagen - loose dirt - water vapor - ice
A: arsenic

Question: If degrees Celsius falls from lower to higher altitudes, then what falls from lower to higher altitudes? Answer choices: - gravity - colder and wetter - water vapor - kinetic energy - density - degrees Celsius - heat energy - altitude
Answer: degrees Celsius

*Question*
If moss is the strongest in tropical enviornments, then where is moss the strongest? Answer choices: - near the shoreline - looseness of dirt or compost - The area was once underwater - It used to be covered by water - dead organisms - tropical environments - our nearest star - the body's largest organ
**Answer**
tropical environments

*Question*
If parasitic creatures have special structures for penetrating an animal, then what do some parasitic creatures have special structures for? Answer choices: - Making friends - produce offspring - sensory neurons - protect them - Penetrate animals - Building sheds - Learning facts - resistance
**Answer**
Penetrate animals