If testosterone stimulates the reproductive organs to develop testicles, then what stimulates the reproductive organs to develop testicles? Answer choices: - sperm - mechanical - barnacles - the penis - the moon - testosterone - Chemical energy - competition
testosterone

If cactuses respond to daily and seasonal cycles and to disease, then what responds to daily and seasonal cycles and to disease? Answer choices: - bees - insects - resistance - agriculture - humans - tortoises - cactuses - vegetation
cactuses

Q: If high temperatures can cause dioxins, then what can high temperatures cause? Answer choices: - symptoms - dioxins - Rise - Pollution - anemia - Allergies - disease - sweating
A: dioxins

Question: If astem is used to store h2o by some plants, then what do some plants use a stem to store? Answer choices: - CO2 - H20 - RNA - UV - urea - Dew - h2o - rain
Answer: h2o

*Question*
If humans require stamina to succeed at physical activities, then what requires stamina to succeed at physical activities? Answer choices: - mushrooms - Mammal - trees - bullfrogs - oxygen - Lobsters - humans - pigeons
**Answer**
humans

*Question*
If blowing into a whistle causes sound, then what does blowing into a whistle do? Answer choices: - makes a sight - makes sound - causes disruption - duplicate itself - unidirectional - decrease stamina - makes hearing - to move people
**Answer**
makes sound