1. single celled organisms
Protista
single celled organisms

2. Euglena Microscopic, one-celled organisms 150 species of Euglena
live in fresh water, and are especially common in warm seasons
Spindle-shaped bodies to millimeters.
Chloroplast
Flagellum

3. Euglena
Green because they contain chlorophyll which allows them to produce food through photosynthesis
Some species also eat tiny particles of living matter.
Use a flagellum (a whip like appendage) that sticks out from the body, to move
Reproduce rapidly and can be studied under an ordinary microscope.

4. Why is Euglena not a plant or animal?
Euglena has chloroplast which means it cannot be an animal and it has a flagellum and an eye spot which means it cannot be a plant.
Chloroplasts enable cells to make their own food so this is a feature of plant cells but euglena can detect light with the eye spot and move towards it with the flagellum and no plants can do this.

5. Amoeba Large single celled organisms
move by cytoplasmic streaming - a pseudopod projects forward and the cytoplasm flows into it
they engulf small food particles and smaller cells

6. Amoeba Engulfs food and water particles
pinocytosis is the engulfment of liquid droplets
phagocytosis is the engulfment of larger food particles
the amoeba does this by forming false feet that flow around the object
white blood cells do the same thing

7. Amoeba

8. Paramecium Single celled organism that can be seen under a microscope
Lives in fresh water so needs a contractile vacuole
Moves by cilia rhythmically beating
Oral groove that is used to take in food particles