light from 3 different lasers (a, b, and c), each with a different wavelength, was shined onto a metal surface. laser c produced no photoelectrons. lasers a and b both produced photoelectrons, but the photoelectrons produced by a had a greater frequency than those produced by laser b. arrange the lasers in order of increasing wavelength.

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