Clem is developing a model of a cell. He labels a central structure as the nucleus and writes a caption that describes how DNA is kept inside the nucleus. Which of the following is an important condition of Clem's model?

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment

The influenza virus cause the flu, but not other diseases. why?

How did the discovery of the rhesus factor affect society? o more patients died from having a transfusion with the wrong rhesus factor 0 new treatments during pregnancy could prevent harm to the developing child. o less donated blood could be used in the treatment of patients. the number of blood types was reduced by half