Complete the sentences to describe the different levels of organization in organisms.
a(n) is a group of organs that work together to perform a common function.
a(n) is a group of tissues that work together to perform a common function.
a(n) is a basic unit of structure and function of all living things.
a(n) is a group of cells that work together to perform a common function.

1. Organ system

2. Organ

3. Cell

4. Tissue

Explanation:

1. An organ system is a combination of two or more organs which are responsible for the conduction of a vital function in the body. For example, nose, phyrnx, larynx, and lungs they are responsible for the process of respiration.

2. An organ is a group of specialized tissues that combined and adapted together to perform a specialized function in an organism.

3. A cell is a basic unit of life. It is the small unit which forms the structural basis of the organism. The organisms may vary in complexity depending upon the number of cells and the functions performed by these cells.

4. A tissue is a group of cells. These cells combine together to perform a function that is common to all. The cells in tissues have a common origin.

An ORGAN SYSTEM consists of organs that work together to perform a function, while an ORGAN is a group of tissues that perform a function. A CELL is the basic unit of life, whereas a TISSUE is a group of cells.

In conclusion, an ORGAN SYSTEM consists of organs that work together to perform a function, while an ORGAN is a group of tissues that perform a function. A CELL is the basic unit of life, whereas a TISSUE is a group of cells.

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endo:

regulates body hormones, aldosterone, vasopressin

neural:

signal, regulates body using electric signals, reflex

endo has to do with hormones; aldosterone and vasopressin are both hormones. i also had this question and got it right : d