Luminol interferes with DNA testing and, therefore, should not be applied directly to a bloodstain.
a. true
b. false
b. false
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What brain region plays an essential role in the formation of declarative memories?
a. cerebrum b. cerebellum c. hippocampus d. thalamus e. hypothalamus
Carbohydrate molecules:a
serve as structural components of human cell walls. b. form the regulatory compounds known as enzymes. c. are a source of energy. d. help protect vital organs from damage. e. contain the genetic information of a cell.
The Earth is spherical, which causes differences in the intensity of solar radiation at different latitudes. The Earth is also titled on its axis at a 23.5° angle. How do you think this tilt affects the intensity of solar radiation?
A. The Northern hemisphere has a higher intensity of solar radiation than the Southern hemisphere because it is tilted toward the Sun year round. B. The sun's rays strike the Northern hemisphere more obliquely during its winter months and less obliquely during its summer months. C. The Northern hemisphere has a lower intensity of solar radiation than the Southern hemisphere because it is tilted away from the Sun year round. D. The sun's rays strike the Northern hemisphere more obliquely during its summer months and less obliquely during its winter months. E. In the Northern and Southern hemispheres, equal latitudes receive the sun's rays at equal angles year round.
Suppose a bag made of a selectively permeable membrane was filled with a 5% solution of glucose and sealed. What would happen if the bag was placed in pure water or in a 10% glucose solution?
What will be an ideal response?