Sponges members of the Porifera might be the simplest multi cellular animals on earth. They do not have any tissue and organs or organ systems. In order for sponges to evolve what must happen first?

How would you prepare for unexpected expenses in a healthcare organization?

*psych* 1. discuss the major categories of abnormal behaviors as classified by the diagnostic and statistical manual (dsm) 2. identify the characteristics of the major categories of abnormal behavior.

Christopher came down with chicken pox after spending time in his child’s day care. the chicken pox represents what link in the chain of transmission in this scenario?