Plants that attract hummingbirds often produce nectar that is high in sucrose. This is a key nutrient that supports a hummingbird’s high metabolism. Use the principles of natural selection to explain this trait in certain plants.

a axis of a graph is a color or shade so we can all go outside and have a party so we can eat   some grilled cheese sammiches and broccoli and have some ugly fun times

i don't know why i put this, i know its not the i was just bored : p

delete this answer while you can

the correct answer is 2 and 4