_ is the smallest independently functioning unit of a living organism

(a)  

groups of cells that have a similar structure and act together to perform a specific function is called _.

(a)  

An anatomically distinct structure which composed of two or more types of tissues that work together is called _.

(a)  

What is the missing part? cells -> tissues -> organ -> (a)   -> organism

it is an individual living thing that made up of one or more organ systems that carries out all the basic life functions

(a)  

group of organisms that share a genetic heritage, are able to interbreed, and to create offspring that are also fertile

(a)  

_ is a group of individuals of the same species living and interbreeding within a given area

(a)  

_ consists of different populations of organism living in the same area

(a)  

A group of similar ecosystems with the same type of physical environment is called _.

(a)  

consists of many different biomes and all life form exists including all of the environments that support life is called _.

(a)