So that they can take their food from the water.
Flagella propel protozoa through water. Sperm also have the same way of moving.
cilia and flagella
Yes, atoms inside solids are still moving through time. Even a solid at absolute zero is still moving through time (though not space).
Moving quickly with flagella or cilia takes a lot of energy, and mitochondria provide this energy.
with moving mechanistic like cilia and flagella
they help in moving the cell and changing its direction
You can compare flagellum to a tail or to a leg or arm. This is because it is the cells ways of moving around.
Young cultures are typically used for a flagella stain because they are healthier and livelier. This helps the flagella get seen easier since the bacteria are continuously moving.
Sponges are animals and are heterotrophs- they need to take in nutrients and food for energy. The nutrients are carried by the water into the sponge.
I think they're called flagella and cilia. The flagella work like propellers and the cilia are little moving hairs that let a cell crawl.
They do not hunt. They filter feed. Since they have no organs they cannot digest, and they cannot move, so they would pull in nutrients through the water (AKA filter feeding) The cells with flagella keep water moving through the sponge.
Taxis is the directional movement of the flagella("moving tail"). So... the direction of movement by the prokaryotic cell is described in the taxis. Example: positive phototaxis- positive(toward) photo(light)taxis(movement).