levels of organization

Which of the following is listed from least complex to most complex

• organism, organ system, organ , tissue, cell

• cell, tissue, organ, organ system, organism

• tissue, cell, organ system, organism, organ

• cell, organ, tissue, organ system, organism

Tissue is

• a group of organs

• a group of cells

• a group of organ systems

• a group of organisms

The definition of organs is

• a group of organisms

• a group of cells

• a group of tissues

• a group of organ systems

Cells are

• a group of tissues

• a group of organs

• basic unit of life

• a group of organ system

Organ system is

• a group of organs

• a group of cells

• a group of tissues

• a group of organisms

A heart is an example of an

• cell

• tissue

• organ

• organ system

Connective, nerve, epithelial, and muscle are examples of

• cells

• tissues

• organ

• organ system

Animal cell and plant cells are examples of

• cells

• tissues

• organs

• organ systems

Circulatory, Immune, Respiratory, Digestive are examples of

• cells

• tissues

• organs

• organ systems

Humans, dogs, cats, horses, cows are examples of

• cell

• tissue

• organ

• organisms