There is a trait with two alleles. one allele codes for blue while the other allele codes for yellow. if this trait is inherited in a codominant manner, what color will the offspring be?

ALL animals make use of other animals and organisms for food. They are heterotrophic so they have to get energy elsewhere.

ALL animals are capable of motion at some stage of their lives.

Animals developed specialized cells and tissues that are advanced and complex.

And because all animals eat I would assume they all digest the food they ingest. Other than parasites who don't really digest their food.