What combination of the characteristics of Huntington's disease puzzled JBS Haldane?
What will be an ideal response?
ANS:
Huntington's disease is extremely debilitating, yet it is quite common.
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Answer the following statements true (T) or false (F)
1. The development of hypertension in humans is associated with obesity, smoking, age, and kidney disease. 2. In an open circulatory system, there is no difference between blood and interstitial fluid. 3. Relative to closed circulatory systems, Open Circulatory Systems pump hemolymph at relatively high pressure. 4. Blood is typically delivered to respiratory structures at low pressures in closed circulatory systems.
Which of the following plant cells has a
companion cell?
a. tracheids b. vessel members c. sieve-tube members d. sclerids e. fibers
The measure of the light-bending ability of a medium is the
a) illumination. b) magnification. c) refractive index. d) resolution.
All of the following are benefits of food irradiation, except
A. it can kill insects on the food. B. it can inhibit the sprouting of white potatoes. C. it can reduce the number of food-borne deaths each year. D. it can kill bacterial pathogens on the food. E. it makes the food less nutritious.