Q: Q: What lets different species of anole lizards live in the same area without competing? A: | OPTIONS:
- concentration
- cooperation
- variation
- specialization
A: specialization

Q: Q: Winds are caused by differences in what? A: | OPTIONS:
- elevation
- temperature
- water pressure
- air pressure
A: air pressure

Q: Q: What can ultimately result when species are introduced to a new place and prey on other species? A: | OPTIONS:
- depletion
- over population
- elimination
- extinction
A: extinction

Q: Q: Wich disorder arises when defective valves allow blood to accumulate within the veins? A: | OPTIONS:
- vascular disease
- bulging veins
- cataracts veins
- varicose veins
A: varicose veins