1.  How many different sequences of four letters can be formed using the letters A, B, C, D, E, and F if the letter A must appear once? 2.  How many different “words” can you make using all the letters of MISSISSIPPI?

Why is altruism considered evil by moral egoists? Do you agree or disagree with this assessment?

Which cells of the alveolar epithelium is considered to be the primary site of gas exchange?

Plato believed that perfect or ideal understandings of concepts exist. Just as the perfect triangle exists—though we may have only a theoretical understanding of it—the same is true for moral principles. This meta-ethical theory of moral principles is understood as

Imagine an advertisement for a medication that includes the following claim: “This pill is an effective sleeping aid because of its sleep-inducing value.” What sort of fallacy is the ad using?

True or False: Gas exchange occurs in the Conducting Zone

An individual who is uncooperative or selfish contributes to their society in the form of

Imagine that a girl helps an elderly woman to get from one corner of an intersection to another. How would a psychological egoist explain this action?

Prove by induction that is divisible by 3 for all positive integers n.

An important debate in moral philosophy concerns the question of whether an action has moral worth if it is not done for moral reasons. This debate is about which of the following?