Levels of Organization
This is the highest level of organization, referring to anything that can perform life processes by itself.
What is an organism?
The main job of this type of tissue is to protect the organs and structures beneath it, like the skin on your body
What is epithelial tissue?
This type of organism is made of only a single cell, which must do everything needed to stay alive.
What is a unicellular organism?
This organ system includes the skin, hair, and nails, and its job is to protect the tissues beneath them
What is the integumentary system?
This is the process that keeps the inside of an organism approximately the same all the time.
What is homeostasis?
This level is a group of similar cells working together to perform a specific job
What is a tissue?
This tissue's main job is to contract and relax to produce movement
What is muscle tissue?
Plants, animals, and most fungi are this type of organism, made up of many cells.
What is a multicellular organism?
Your lungs absorb oxygen and release carbon dioxide in this system.
What is the respiratory system?
This organ system removes wastes from the blood and regulates your body's fluids
What is the urinary system?
A structure made of two or more tissue types working together to do a specific job is at this level.
What is an organ?
This type of tissue is responsible for sending electrical signals throughout the body.
What is nervous tissue?
A benefit of being a unicellular organism is that you need fewer resources and can reproduce faster
What are some benefits of unicellularity?
This system is responsible for breaking down the food you eat into nutrients that your body can absorb.
What is the digestive system?
This system returns leaked fluids to blood vessels and helps get rid of bacteria and viruses.
What is the lymphatic system
This is a group of organs that work together to perform a specific function, like the digestive system
What is an organ system?
This tissue type helps with tasks like joining, protecting, supporting, and nourishing
What is connective tissue?
A longer life and a greater size are two benefits of this type of organism.
What are some benefits of multicellularity?
The heart and blood vessels are part of this system.
What is the cardiovascular system?
This system's glands send out chemical messages to the body.
What is the endocrine system?
This is the lowest level of organization in a multicellular organism, and most of them are specialized.
What is a cell?
This type of tissue includes cardiac, smooth, and skeletal types.
What is muscle tissue?
The process of cells changing into different types of cells is called this.
What is differentiation?
This system receives and sends electrical messages throughout your body.
What is the nervous system?
This organ system works with the skeletal system to help you move
What is the muscular system?