Maria, a volunteer firefighter in New Jersey, rushed along with the rest of her fire company to lower Manhattan on that awful morning of September 11, 2001. As they crossed over the Hudson into the city, they heard that the towers had collapsed, so they
helped search through the rubble and dust from the buildings to find survivors. Maria has now developed serious health problems based on her exposure to the rubble and dust, which included asbestos and many other small particles. Which organ system and which organelle do you think are most likely failing in this brave woman's body?
What will be an ideal response?
Because Maria was exposed to many airborne particles within the rubble as well as inhaled the dust, it is likely that her respiratory system has been damaged. Lysosomes inside the cells cleaning the respiratory passages cannot break down asbestos. These small particles destabilize the membranes of the lysosomes, causing the release of enzymes in the respiratory tract and scarring of Maria's lung tissue.
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You work in a lab that studies bird brains and behavior. You and your labmate have both submitted brains to a colleague to be sectioned. Your species is a bird that is known for storing large numbers of nuts each autumn in a variety of hidden locations. Your labmate's species is a raptor known for remarkable predatory behavior. What do you anticipate will be different between the two brains?
A. Your nut-hiding species is likely to have a large hippocampus, while the raptor may have a large visual system. B. Your nut-hiding species is likely to have a large visual system, while the raptor may have an large hippocampus. C. Both species are likely to have a large nucleus accumbens. D. Your nut-hiding species is likely to have a large hypothalamus, while the raptor may have an large olfactory system. Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gather Content: What do you already know about brain characteristics associated with different behaviors? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection on Process: Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Aerobic respiration evolved in
a. some bacteria. b. some archea. c. animals. d. mitochondria. e. in some bacteria and some archea.
HIV infected mothers can transmit the virus by
a. breast milk. b. during natural birth. c. with a C-section. d. by kissing the baby on the cheek. e. both A and B.
Plant species A has a diploid number of 28. Plant species B has a diploid number of 14. A new, sexually reproducing species C arises as an allopolyploid from hybridization of A and B. The diploid number of C would probably be
A) 14. B) 21. C) 28. D) 42. E) 63.