Structures
This structure pumps blood through the body
Heart
This structure contracts to move bones
Muscle
This system provides shape and support and protects tissues and organs.
Skeletal System
This system works with the respiratory system to deliver Oxygen to the cells and remove Carbon Dioxide waste from the cells.
Circulatory
Homeostasis
This structure filters urea from the blood and makes urine
Kidney
Skin
Hormones are produced in this system
Endocrine
This system sends signals to the endocrine system to release hormones
Nervous
This level of organization is represented by the entire skeleton of a snake.
Organ System
This structure absorbs water in the digestive tract, leaving solid waste behind
Large intestine
This type neurons sends messages from the brain to the rest of the body
Motor neuron
This system's primary job is to remove waste from the body
Excretory
This system works most directly with the skeletal system for movement
Muscular
The goal of this type of feedback is to return the internal environment to a set point.
Negative Feedback
This structure makes blood cells
Bone
This type of skeleton is located on the outside of the body
Exoskeleton
Free points!
Yay!
Yay!
This type of symmetry is organized around a central axis. For example, an animal that is cut like a pizza will have the same structures in every section.
Radial
This structure in the lungs has a large amount of capillaries surrounding it and is the site of diffusion of Oxygen and Carbon Dioxide between the respiratory and circulatory systems.
Alveoli
These two types of muscle are involuntary
Smooth and Cardiac
When a person’s arm touches something hot, the muscles in the arm react to pull the arm away. Which body system sends the message and alerts the muscles to react?
Nervous
Skeletal, Circulatory, and Lymphatic
Cells become committed to developing into only one type of cell during this step of cell specialization
Determination