Why do you think the size of a white dwarf affects its visual luminosity?

According to this food web which of the following would be considered primary consumers

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind

Can a trait be both polygenic and have multiple alleles? explain why or why not.