What are the two alleles for this trait

Draw the structure of dna nucleotide with adenine as nitrogenous base

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.

At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary