If threatening behavior causes a fight-or-flight response in dogs, then threatening behavior causes a fight-or-flight response in what? Answer choices: - Whales - dogs - hair - Birds - humans - hats - bacteria - bears
dogs

If to ensure that water is safe to drink harmful substances are removed before drinking, then to ensure that water is safe to drink, harmful what are removed before drinking? Answer choices: - leeches - seeds - toxins - currents - bacteria - substances - Roundworms - plants
substances

Q: If apan is used to keep food warm or to heat it up, then awhat is used to keep food warm or to heat it up? Answer choices: - heat - gas - pan - foil - freezer - fur - bag - jacket
A: pan

Question: If light is required for seeing, then what is required for seeing? Answer choices: - dark - sun - light - wind - retina - eyes - photons - copper
Answer: light

*Question*
If amphibians pump blood in a complex manner, then what do amphibians pump around the body in a complex manner? Answer choices: - SO2 - food - Energy. - oxygen - Energy - thoughts - blood - water
**Answer**
blood

Q: If looking at the sun has a negative impact on the eyes, then looking the sun has a what impact on the eyes? Answer choices: - heat energy - sunlight - positive - Temperature - negative - confusing - neutral - dangerous
A: negative