A unicellular organism is one that functions as a single unit.
metabolism
A whole organism refers to a complete living thing that functions as a single unit, such as a plant, animal, or microorganism. It includes all the structures and systems necessary for the organism to survive and carry out its life functions.
A one-celled organism is the smallest organism that can carry out all functions of life. Two examples would be a paramecium (Protista kingdom), and Cyanobacteria (Eubacteria kingdom).
Fitness.
An organism's parts have specific functions that are essential for its survival and reproduction. These functions are closely related to the structure and composition of the parts, allowing the organism to perform activities such as obtaining food, reproducing, resisting diseases, and carrying out other life processes. The interplay between an organism's parts and their functions ensures the organism's overall health and well-being.
We call these unicellular.
In a single-called organism, organelles such as the nucleus, mitochondria, and chloroplasts carry out various life functions such as reproduction, energy production, and photosynthesis. These organelles work together within the cell to maintain the essential processes necessary for the organism's survival and functioning.
It uses it to carry out cellular functions.
The range of factors under which an organism functions and survives is known as its ecological niche. This includes the physical environment the organism lives in, as well as its interactions with other species and resources in its ecosystem.
The cells of an organism carry out the functions it needs to live. Healthier cells carry out the functions more efficiently making it easier for the organism to live aka making the organism healthier
coenzymes