Cells

What is a cell?

• Is the biggest unit of life

• Is all the living things

• Is the smallest unit of life

• Unicellular and Multi-cellular

How many cells do humans have?

• 65 trillions

• 75 trillions

• 75 billions

• 35 trillions

which organisms are made up of cells? Choose all the corrects.

• Air

• Water

• Humans

• Bacterias

• Plants

What is a multi-cellular organism?

• are those composed by more than 1 cell

• multiples cells together

• are those composed by 1 cell

What is an unicellular organism?

• an organism that has more than 1 cell

• an organism that has 1 cell

Is the principal organ of circulatory system

• Stomatch

• Heart

• Lungs

Is the principal organ of respiratory system

• Pulmon

• Lungs

• Brain

What is a tissue?

• Is a group of cells which forms an organ

• It's an organ

• It is a system

What is an organ?

• are groups of cells that have a similar structure and act together to perform a specific function

• the smallest structure in our body

• a group of tissues in a living organism that have been adapted to perform a specific function.