Q: Answer the following question given this paragraph: Specialization in Anole Lizards. Specialization lets different species of anole lizards live in the same area without competing. Q: What lets different species of anole lizards live in the same area without competing? A: | OPTIONS:
- concentration
- cooperation
- variation
- specialization
A: specialization

Q: Answer the following question given this paragraph: Q: Winds are caused by differences in what? A: | OPTIONS:
- elevation
- temperature
- water pressure
- air pressure
A: air pressure

Q: Answer the following question given this paragraph: Humans have caused many extinctions by introducing species to new places. For example, many of New Zealand's birds have adapted to nesting on the ground. This was possible because there were no land mammals in New Zealand. Then Europeans arrived and brought cats, foxes, and other predators with them. Several of New Zealand's ground nesting birds, such as this flightless kiwi, are now extinct or threatened because of these predators. 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: Answer the following question given this paragraph: Edema may be accompanied by varicose veins, especially in the superficial veins of the legs (Figure 20.8). This disorder arises when defective valves allow blood to accumulate within the veins, causing them to distend, twist, and become visible on the surface of the integument. Varicose veins may occur in both sexes, but are more common in women and are often related to pregnancy. More than simple cosmetic blemishes, varicose veins are often painful and sometimes itchy or throbbing. Without treatment, they tend to grow worse over time. The use of support hose, as well as elevating the feet and legs whenever possible, may be helpful in alleviating this condition. Laser surgery and interventional radiologic procedures can reduce the size and severity of varicose veins. Severe cases may require conventional surgery to remove the damaged vessels. As there are typically redundant circulation patterns, that is,. 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