Atypical ecosystem like the one pictured here might have 200,000 caterpillars, 10,000 frogs, 500 snakes, and 35 owls. why do you think there are fewer and fewer organisms at each level of the food chain?

Which of the following would be an important part of a multi-step plan to restore the stability of the red-cockaded woodpecker's ecosystem?

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?