The Amoeba it eats algae bacteria plant cells and microscopic protozoan and metazoan- some amoebas are parasites they eat by surrounding tiny particles of the food with pseudopods and forming a buble like food vacuole. the food vacuole digest the food wastes and excess water are transported outside the cell by contractile vacuoles. amoebas move by changing the shapes of their body and forming pseudopods temporary foot-like structures. the amoeba reproduction is that it asexually by binary fission.
The Volvox is a one-celed algae that lives together in a colony the colony is a hollow ball with 500 to 20.000 individual cells each volvox has two flagella the flagella beat together to roll the ball through the water the reproduction is that the daughter colonies are small dark green balls inside the volvox colonywhen the daughter colonies mature the parent ball bursts open and releases the daughter colonies. the volvox is a motile green algae colony composed of 500-50,000 cells arranged along the periphery of a hollow mucilaginious sphere.
the euglena they have all chloroplasts and can make their own food by photosynthesis but they are not completely autotrophic though.the euglena can also absorb food from it's enviorment. the euglena moves by a flagellum and that is a whip-like structure that acts like a little motor it is located on the anterior (front) end and twirls in such a way as to pull the cell through the water and they are green because they eat green algae. they keep the algae inside their bodies and use it to make their own food. the Euglena uses its eyespot to locate light.
The paramecium feeds onmicroorganisms like bacteria, algae and yeasts. The paramecium uses its cilia to sweep the food along with some water into the cell mouth after it falls into the oral groove. parameciums are capable of both sexual and asexual reproduction. Asexual reproduction is the most common and this is accomplashied by the organism dividing transversely. parameciums can reproduce two or three times a day, normally paramecium only reproduce sexually under stressful conditions. parameciumicia play a role in the carbon cycle because the bacteria they eat are often found on decaying plants. paramecium will eat the decaying plant mater in addition to the bacteria.
Amoeba eats two paramecia (Amoeba's lunch)
Volvox close up - Flagella movement