Match the description to the level of organization.
organ system
group of cells that work together to perform
a common function
cell
group of organs that work together to
perform a common function
tissue
basic unit of structure and function of all
living things
organ
group of tissues that work together to
perform a common function

The level of organization is matched as:

Cell - basic unit of structure and function of all  living things.

Tissue - group of cells that work together to perform  a common function

organ -group of tissues that work together to  perform a common function

organ system : group of organs that work together to  perform a common function

Explanation:

The organ level of organization is the combination of two or many types of cells which allow a specific function to the different organs in the body.

Cell is the smallest structural and functional unit of life which has independent machinery for growth and other life processes. The next level of organization is formed at cellular level.

The tissue level organisation refers to group of cells theta are specialized for specific functions.

The organ level is when 2 or more tissues come together to perform specific functions.

The organ system: It is the assembly of organs which combine to perform a same  functions for example urinary bladder, ureters, urethra and kidney makes excretory system or organ system of kidneys.

increase soil erosion                                             reduce soil erosion

cattle grazing                                                         hydroseeding

deforestation                                                         contour plowing

                                                                                planting vegetation

plant roots basically hold the top soil

together and stop soil erosion because

in such situation top soil is not removed

during flood but cattle grazing causes

soil erosion because cattle consume the

grasses and herbs and top soil is exposed.

same situation occurs because of

deforestation, the trees and plants are cut

down to expose top soil which causes soil

erosion