§ Consists of more than 1 cell
§ At the multicellular organisms begin as
o A single cell : zygote
§
Sperm + ovum
: fertilisation
zygote ( 1
cell)
: cell division
embryo (many
cell)
§
Cells will differentiate & undergo specialisation to carry
outspecific function
o
Perform their tasks more efficiently
Cells
Tissues (
a group of similar cells with particular
function)
: Group togrther
Organ ( a group of different tissues that perform a specialised function)
: Organised into
System
: Worked together
Multicellular organism
Exp :
1 Epithelial cell of
small 2 epithelial tissue
intestinal lining
4 Digestive system 3 organ
5 Organism
