| B. There are benefits to developing fevers.
C. Fevers inhibit bacterial growth.
D. Lizards can develop fevers.
2. Fevers cause ____.
A. prostaglandins to be formed
B. iron to be made available to bacteria
C. leukocytes to be more mobile
D. lizards to be coldblooded animals
3. Which of the following statements is true?
A. Developing fever is the privilege of warmblooded animals, so sick lizards can not run a fever.
B. Invertebrates also have the ability to raise their temperature.
C. The internal temperatures of warmblooded creatures are independent of the weather, so are the coldblooded animal.
D. Sick lizards move into the sun to develop fever.
4. The passage implies that ____.
A. the fever process is widespread because moderate fevers have benefits
B. the reduction of fevers can inhibit bacterial growth
C. man can use sun lamp to raise lizards temperature
D. Crayfish injected with bacteria have a purpose for moving to hot areas
5. Scorpions injected with prostaglandins move to hot areas to ____.
A. engage in greater activity
B. seek out a moreiron environment
C. demonstrate that they are ill
D. develop a fever and fight bacterial infections
2
In the Caucasus region of the Soviet Union, nearly 50 out of every 100,000 people live to celebrate their 100th birthday, and many dont stop at 100. By comparison, in America only 3 people in 100,000 reach 100. But these Soviet old people arent alone. The Pakistani Hunzas, who live high in the Himalaya Mountains, and the Vilcabambans of the Andes Mountains in Ecuador seem to share the secret of long life too.
[上一页] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [下一页]