The second law of thermodynamics states that ____
a. the energy of the universe is a constant
b. energy can be neither created nor destroyed
c. energy disperses spontaneously
d. energy transformations create a more orderly universe
e. energy and matter are the same thing
ANSWER: c
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Respond to statements 120–124 in reference to the five hormones
listed below. a. estrogen b. luteinizing hormone c. somatotropin d. oxytocin e. antidiuretic hormone M 120. This hormone controls water retention and loss. M 121. The mammary glands are the target for this hormone. D 122. This hormone induces protein synthesis and cell division in young animals. D 123. The kidneys are the target for this hormone. M 124. Uterine contractions are induced by this hormone.
The testing method involving the separation of serum proteins by electrophoresis, their subsequent transfer to special filters, and then probing with patient sera is called
A. the Quellung test. B. Ouchterlony double diffusion. C. the Western blot. D. immunelectrophoresis. E. a radioimmunoassay (RIA).
In India, golden jackals that have been expelled from their pack have been known to attach themselves to a particular tiger, trailing it at a safe distance in order to feed on the big cat's kills. What type of relationship exists between the jackal and the tiger?
A. competition B. commensalism C. parasitism D. mutualism E. predation
What is the most efficient and cost-effective way to control infectious diseases?
A) variolation B) active immunization by vaccination C) passive immunotherapy using immunoglobulins D) immune testing E) autoimmunization