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(Q051) President Nixon resigned the office of the presidency in 1974, in the wake of the Watergate scandal and cover-up.

(Q009) The collapse of communism in the Soviet Union and eastern Europe occurred during what years?

(Q044) During the 1991 Gulf War, President George H. W. Bush’s approval rating reached 89 percent, but he lost the presidential election the next year.

During a plant’s life cycle, meiosis takes place in the _______ generation, and the result is _______. 

For the phylogeny above, which of the following could be considered an ancestral trait?

1. What does heterospory mean? 2. Give an example of a plant that is heterosporous.

What are TWO traits you could look for to determine if an animal is an arachnid or an insect?  Be sure to state which group has which version of the trait. 

Which kind of virus has to turn its RNA genetic code into complementary mRNA first before it can translated into proteins at the host cell’s ribosomes?

Arctic foxes (a mammal species) and willow ptarmigans (a bird species) are both brown in summer and white in winter. The common ancestor of all birds did not become white in winter and neither did the common ancestor of all mammals. What type of trait is seasonal white coloration for arctic foxes and willow ptarmigans?    

Name a phylum that is NOT a bilaterian and tell me two traits of the organisms in that phylum.