Levels of Organization

Flashcards covering the biological hierarchy of organization from cells through organ systems to the complete organism based on lecture notes.

What is the basic unit of all living things according to the transcript?

Cells

What is the smallest independent unit of life?

The cell

What are two examples of specific cell types mentioned on Page 1?

White blood cell and sperm cell

How are tissues defined in the levels of organization?

Groups of similar cells which carry a specific function

What is the definition of an organ?

A group of tissues which work together to carry out a specific function

What two specific examples of organs are provided on Page 1?

Liver and kidney

What comprises an organ system according to the lecture notes?

A group of organs which work together to carry out a specific function

Which four structures combine to form the urinary system?

The kidneys, ureters, urinary bladder and urethra

How is an organism defined in relation to organ systems?

The complete individual made up of all the organ systems in the body

What term refers to a single individual of a species?

Organism

What is the sequence of organization from simplest unit to complex organism?

CELL, TISSUE, ORGAN, ORGAN SYSTEMS, ORGANISM

What specific type of specialized cell is illustrated in the diagram on Page 2?

Muscle cell

In the diagram hierarchy, what do muscle cells form?

Muscle tissue

Based on the Page 2 example, what organ is formed from muscle tissue?

Heart

Which organ system does the heart belong to in the provided example?

Circulatory system

What does the circulatory system make up part of according to the diagram?

The human body

Living material builds up from ________ to ________.

Simple to complex

What do simple cells come together to form?

Complex multicellular organisms

True or False: All living things are made up of cells.

True

What level of organization is represented by the kidneys, ureters, urinary bladder, and urethra working together?

Organ system