If polar bears can generate heat by shivering, then what can polar bears do to generate heat?  Answer choices: - make fire  - eat ice  - stay warm  - nothing  - fur  - motors  - shiver  - sweating
shiver

If tobacco smoke is very deadly, then what is very deadly?  Answer choices: - sticks  - truth  - insults  - Pesticides  - chlorofluorocarbons  - Tobacco smoke  - Electrical energy  - forest is destroyed
Tobacco smoke

Q: If resistant germs can cause illness, then what property do germs have that can make people sick?  Answer choices: - coded genes  - hyperthyroidism  - hypothyroidism  - chickenpox  - smallpox  - viruses  - Echinoids  - resistance
A: resistance

Question: If proteins are found on cancer cells, then what can be found on cancer cells?  Answer choices: - acetic acid  - Allergies  - bacteria  - parasites  - fever  - PDAs  - proteins  - bioaerosols
Answer: proteins

*Question*
If chemical energy has a positive impact on an organism's health, then what has a positive impact on an organism's health?  Answer choices: - chemical energy  - aerobic capacity  - predators  - exercise  - nutrients  - Proteins  - habitat destruction  - death
**Answer**
chemical energy

*Question*
If sea stars use a unique water vascular system with feet, then sea stars use a unique water vascular system with what?  Answer choices: - growth  - a ray  - feet  - oxygen  - porous  - energy  - Light  - volume
**Answer**

feet