What are the six key elements found in living organisms

Sweating and breathing is an example of differentiation specialization maintaining homeostasis metabolism

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism

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