A)​skin cells and heart cells
B)epithelial cells and muscle cells
C)nerve cells and muscle cells
D)kidney cells and pancreatic cells
E)​connective cells and nerve cells

A)​secretive and absorptive
B)endocrine and exocrine
C)internal and external
D)embryonic and latent
E)​ducted and ductless

A)​The containment of functional tissues
B)A collection of diverse specialized cells
C)A multi-cellular life form
D)An integrated collection of related organs
E)​A living being capable of cognition