The smallest building blocks of all living beings are called

This place receives and analyzes information from sensory receptors, then sends a command stimulus to an effector to maintain homeostasis.

The unit that receives a command stimulus from the control center and causes an action to help maintain homeostasis is called this.

Which of the following descriptions defines homeostasis? 

A condition in which there is a decreases ability for an organ system to maintain the body's internal environment within normal ranges (homeostasis)

Organ systems cooperate to maintain homeostasis through a process called

The speed at which the body consumes energy is called the -

This relates to all chemical reactions that occur within an organism to maintain life.

Atoms combine together in different ways to form larger particles known as -

The mechanism that reverses a condition that has exceeded the normal homeostatic range.

A body part organized to perform a specific function and is composed of at least two different types of tissues.

Two or more organs that work together

This further increases a condition that has exceeded the normal homeostatic range

A transmitter that senses environmental changes to the body.

Collections of similar cells with a common function form

This organ system has glands and secretes hormones

This organ system contains cardiac, smooth and skeletal muscles which pumps the heart, moves materials through the digestive system and moves the body.

This organ system contains the kidneys and bladder which removes nitrogen containing waste products from our blood.

This organ system contains the lungs, nasal passages, pharynx and larynx. It delivers oxygen and removes carbon dioxide from the blood.

This system contains bones, cartilage and ligaments. they support the body, protect organs and produce blood cells.

This organ system contains the heart and blood vessels. It transports oxygen and nutrients to the body's cells and removes waste products.

This organ system includes the esophagus, stomach and intestines. It breaks down the foods for absorption of nutrients by the body.

This system includes the skin. It protects the body and helps regulate body temperature and eliminate waste.

This system includes testes, scrotum and penis in males ans ovaries, uterus, and vagina in females. It's function is to enable reproduction.

This system is made up of lymphatic vessels and nodes. It's function is to return body fluids back into the blood stream.

This system is made up of the brain, spinal cord, nerves and sensory receptors. Its function is receive and interpret sensory input, direct body movements, and maintain memory and emotions.