what are the 4 levels of organisations
cells def
basic building bloxks
tissues
cells grouped with similar specifications
organs def
tissues working together
systems def
organs with common purpose
first tissue type
epithelial
what does epithelial look like
joined closely very organised smooth
wheres it found
heart, liver, intestines
what is the second tisue
connective
what does connective look lke
not close together, not organised
whree is it
bone cartilage ligaments
what are they separed by
non cellar matrix
what is blood
connective
purpose of connective tissue
support hold togther