Political scientists disagree on the exact causes of low representation of women in Congress. Why do you think there are so few women in Congress in comparison to men? How likely is it that these patterns of representation will dramatically change over your lifetime? For this discussion question, you will have to do some research online.

Which of the following statements is true of trophic levels in an ecosystem?

a) Food chains are accurate representations of dynamics in an ecosystem.

b) In terrestrial ecosystems, primary producers commonly eat plants.

c) Food webs are easier to interpret than food chains.

d) The least amount of energy is available at the top of a food chain.