____ strips an area of vegetation and soil, creating an ecological dead zone
a. Biological magnification
b. Renewable energy
c. Ecological restoration
d. Ground mining
e. Surface mining
ANSWER: e
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Which of the following genotypes would result in a true-breeding stock?
A. AA or Aa or aa B. Aa, but not AA or aa C. AA, but not Aa or aa D. Aa, but not AA or aa E. AA or aa, but not Aa
In a medical emergency, when an individual has stopped breathing on their own, mouth-to-mouth resuscitation can be administered while waiting for the arrival of EMTs, in order to increase that individual’s odds of survival. In order to perform mouth-to-mouth resuscitation, air from a conscious individual’s lungs is forced into the lungs of the unconscious individual. What effect does this have?
a. Forcing air into the unconscious individual’s lungs triggers the sympathetic breathing reflex, whereby the lungs ”remember” to start breathing again. b. Mouth-to-mouth resuscitation prevents the unconscious individual from exhaling their residual volume, which would cause the lungs to collapse and lead to inevitable death. c. Some residual oxygen from the conscious individual’s lungs diffuses into the unconscious individual’s blood, and the increased pressure forces some CO2 saturated air out of their lungs. d. Mouth-to-mouth resuscitation keeps the alveoli of the lungs moist and warm, allowing the lungs to continue exchanging gases with the atmosphere on a passive but adequate level.
The movement of materials already in the phloem can be described using the term(s):
a. source-to-sink only b. pressure flow only c. cohesion only d. both active transport and cohesion e. both source-to-sink and pressure flow
"Boy! You can line up all these homologous pairs of chromosomes in a lot of different ways!" This process is referred to as
A. segregation. B. synapse. C. independent assortment. D. crossing-over.