Should pluto have been reclassified as a dwarf planet? why or why not?
me answer !

Eutrophication caused by human nutrient pollution.

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.

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