yes.
Yes they can
Single-celled organisms.
Yes, many-celled organisms can move on their own. Movement can be achieved through the coordination of muscles or specialized structures that allow for locomotion, such as legs in animals or cilia in microorganisms. Movement is essential for various functions such as finding food, escaping predators, or exploring new environments.
yes
yes
yes
If a single cell is living on its own it is called a single-celled organism. There are millions of single-celled organisms alive today.
Cells in single-celled organisms function independently and carry out all life processes on their own, while cells in multi-celled organisms are specialized to perform specific functions. Multi-celled organisms have different types of cells that work together to support the organism as a whole.
Blood cells and single-celled organisms share some similarities in their structure and function. Both blood cells and single-celled organisms are enclosed by a cell membrane, have specific functions within the organism, and can replicate to maintain their population. However, blood cells are specialized for carrying oxygen and nutrients in multicellular organisms, whereas single-celled organisms must perform all functions necessary for survival on their own.
The kingdom that a single-celled eukaryotic organism that makes its own food belongs to is Protista. Organisms in this kingdom can perform photosynthesis to produce their own food.
Single-celled organisms can vary widely in complexity. Some, like bacteria, are relatively simple in structure and function. Others, like protists, can be much more complex and exhibit various specialized organelles and behaviors. However, all single-celled organisms are considered relatively simple compared to multicellular organisms.
perform photosynthesis to produce their own food, similar to how plants do. Some single-celled organisms, like algae, contain chloroplasts that allow them to capture sunlight and convert it into energy through photosynthesis, a characteristic shared with plants.