John has been having difficulties getting out of bed. he is not interested in going out with friends, and hardly ever answers the phone. john has let a number of bills go unpaid, he is sleeping 12-14 hours a day, and he cannot concentrate at work. he has called in sick to work at least once each week. john is most likely suffering from:

Panthers and leopards prey on deer in an ecosystem. for unknown reasons, the population of leopards increased drastically. what are the likely effects of this change on the species? 1. more food for panthers and more competition for leopards 2. less food and more competition for panthers 3. fewer deer and more competition for panthers 4. more food for deer and less competition for panthers and leopards 5. more food for leopards and less competition for panthers