blocking the activity of acetylcholinesterase a)would make the muscles less excitable. b)would produce muscle weakness. c)would cause spastic paralysis (muscles are contracted and unable to relax). d)would cause flaccid paralysis (muscles are relaxed and unable to contract). e)would have no effect on skeletal muscles.

Which of the following will not cause mass extinction? a. drastic change is weather b. geological change c. both a and b d. none of the above

Groups of organisms with low biotic potential, such as gray whales, that produce at most one offspring every other year a) are r-selected b) are k-selected c) are not subject to density-dependent limiting factors d) show the initial stages of the extinction process e) have escaped from the processes of natural selection and adaptation

Antoine manages a number of apartment buildings that use natural gas for heating, cooking, and laundry. the scatter plot shows the correlation between the outside air temperature and antoine's natural gas bill. which type of correlation does the plot illustrate?