Fact 1: Macroevolution is evolution over geologic time above the level of the species. Fact 2: Dates are provided for the recognized eras and periods of geologic time. Given the two facts above, macroevolution above the level of the species happens over what?

OPTIONS:
- seasons
- eras
- scale
- Earth
- plates
- days
- minutes
- years

Answer: eras

Fact 1: Scraping oneself on a contaminated object may cause infection. Fact 2: Infection often causes death. Given the two facts above, scraping oneself on a contaminated object may cause?

OPTIONS:
- deadly
- Injury
- blood
- rabies
- Herpes
- death
- mildew
- disease

Answer: death

Fact 1: Echinoderms lack respiratory and excretory systems. Fact 2: Lung mechanics and gas exchange are topics during study of the respiratory system. Given the two facts above, what do Echinoderms lack?

OPTIONS:
- Lungs
- Mass
- oxygen
- eardrum
- gills
- ovaries
- Organs
- Bodies

Answer: Lungs

Fact 1: Shivering occurs when many muscles contract a little bit all at once. Fact 2: Another response to cold is shivering. Given the two facts above, a response to what occurs when many muscles contract a little at once?

OPTIONS:
- heat
- cold
- sweat
- pain
- forces
- stress
- comfort
- motion

Answer:
cold