In order for a bill to become law at the federal level, which of these must occur?

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

Gettysburg address question what do you notice about the length of this address? why do you think lincoln made it so short?

What event was one of the greatest factors that led to massive emigration from ireland to the united states in the mid—1800s