They are red because they carry haemoglobin.
They carry information.
They are the bodyguards of the organism.
They carry oxygen around the body.
These cells absorb sunlight so the plants can perfom photosynthesis.
They absorb water and minerals from the soil.
The smallest living unit in a living organism.
Root hair cells
Red blood cells
Red blood cells
Cell
White blood cells
Nerve cells
Leaf cells