A 4-pound bag of grass seed costs $20. A 12-pound bag of grass seed costs $36. How much less does each pound of grass seed cost if a customer buys a 12-pound bag?

Two grizzly bears are fighting over a fish to feed themselves. what kind of interaction is this scenario, which works as a limiting factor in the bears' survival? a. apparent competitionb. interference competitionc. exploitation competitiond. mutualism

Astudent receives a pell grant based on the_.a. satb. nasac. fafsad. act

Francine, a college freshman, has agreed to participate in a psychology research study. before she begins her participation, she reads a statement written by the researcher explaining the purpose of the research and the potential risks of participation. it also explains that francine is free to withdraw from the research at any time. in providing francine with this statement, the researcher has followed the ethical guidelines of for participants.