Which of the following has no part in today’s
concept of natural selection?
a. inheritance of acquired characteristics
b. competition for limited resources
c. inherited variation
d. overproduction of offspring
e. survival of the best adapted
Answer: a
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Which one of the following statements best summarizes the use of transgenic crops over the last 10
years? A. It has increased significantly in both industrialized and developing nations. B. It has increased significantly, but only in industrialized nations that have the expertise. C. It has increased significantly, but only in developing nations where regulations are loose or non-existent. D. It has barely increased at all because of technical difficulties and safety concerns. E. It has fallen due to technical difficulties and safety concerns.
Describe the ongoing research concerning the relationship between species richness and community stability. What
research supports or fails to support this relationship? What will be an ideal response?
What is separase?
A. a protein that is part of the cohesin complex B. a protein that marks a protein called securin for destruction C. a protein that destroys cohesin through its protease activity D. a protein that targets the mitotic cyclin for degradation
Why is bioethanol often added to gasoline?
A. Ethanol is a renewable resource that can increase fuel efficiency and lower vehicle emissions. B. Adding bioethanol to fuels uses surplus corn and wheat that would otherwise go to waste. C. Ethanol is blended with gasoline because it can't be used directly to fuel vehicles. D. It costs less than gasoline.