Organism a shares 50% of its dna sequences with organism b, while organisms b and c share 90% of their dna sequences. what can be concluded from this?

If two parents who's blood types are both b produce a child that has blood type o, what can you say about the parent's genotybes? oa) one is ii ob) one is ibi oc) both are bi od) nothing, this is impossible

Name the glands associated with human digestive system

Are the earth's ocean floor and continents the same age geologically? why or why not?