Air, food, water you know what ever humans do to live! OK!
photosynthesis
No, an organelle isn't technically an organism. A cell is the smallest unit of life.
what is a single celled organism that can carry on all its life
I assume you meant single "celled" organism. It is an organism (life form) that consists of only a sigle cell as opposed to most all other lifeforms on earth which are comprised of many (billions) of cells.
I meant these cells carry out that a cell from another kind of...
photosynthesis
The life span of a Multicellular organism is not limited to the life of a single cell.
simple organic molecules are not necessary for the life process of an organism.
Water :)
Meiosis is the replication of sex cells, so if an organism doesn't want to reproduce offspring, then they can live healthily without undergoing the process of meiosis. However, mitosis is the replication of every other cell in the body, assisting with growth and repair so no organism can live a healthy life without undergoing the process of mitosis.
Metabolic processes are organic processes that occur in a cell or organism, that are essential to living matter. They are necessary to sustain life.
Organism
The cell is responsible for carrying out life processes. However, the various parts that carry out life processes are Roots, Stems, Leaves, and Flowers.
Cell
The chemical changes that take place in a cell or an organism that produce energy and basic materials needed for important life processes, such as mitosis.
organism
No, an organelle isn't technically an organism. A cell is the smallest unit of life.