Alive

No longer alive

Consisting of a single cell

Consisting of or having many cells

The smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane

A theory in biology that includes one or both of the statements that the cell is the fundamental structural and functional unit of living matter and that the organism is composed of autonomous cells with its properties being the sum of those of its c

A unicellular organisms that consist of a single prokaryotic cell

An organism consisting of a cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleus

The action or process of differentiating

A cellular organisational level between cells and a complete organ

A group of tissues in a living organism that have been adapted to perform a specific function

A group of organs that work together to perform one or more functions

A creature such as a plant, animal or a single-celled life form, or something that has interdependent parts and that is being compared to a living creature

An undifferentiated cell of a multicellular organism which is capable of giving rise to indefinitely more cells of the same type, and from which certain other kinds of cell arise by differentiation

An infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host

A member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some which can cause disease

A simple sugar which is an important energy source in living organisms and is a component of many carbohydrates

The internal organ in which the major part of the digestion of food occurs

The central and most important part of an object, movement, or group, forming the basis for its activity and growth

A small dense spherical structure in the nucleus of a cell during inter phase

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