B2 - levels of organisms + cell theory Flashcards
1
Q
state the 3 cell theory
A
- all organisms are made up of 1 or more cells
- the cell is the basic organizational (smallest unit of life) unit of life
- all cells come from pre-existing cells
2
Q
define cell
A
basic fundamental and structural unit in a living organism
3
Q
define tissue
A
cells of similar structure working together to perform the same functions
4
Q
define organ
A
made form different tissues working together to perform specific functions
5
Q
define organ system
A
organs with related functions working together to perform bodily functions
6
Q
define organism
A
a complex living thing made up of interacting organ systems
