Homeostasis is vital to an organism because it allows the organism to _____________.
grow at the fastest rate possible
reproduce even when conditions are unfavorable
camouflage against its background
mantain a stable internal environment
Which human body system consists of veins, arterities, and the heart?
Circulatory
Respiratory
Nervous
Excretory
Which two systems of a rabbit’s body must be working together for the rabbit to run away from a fox?
digestive and endocrine
muscular and skeletal
excretory and nervous
excretory and respiration
The kidneys, which remove dissolved wastes from the blood, are organs of the
endocrine system
excretory system
skeletal system
nervous system
Running is an activity that causes the cells in the muscular system to use oxygen at a faster rate. Which system responds by delivering more oxygen to these cells?
digestive
nervous
circulatory
endocrine
Which part of the integumentary system keeps your body warm?
Nails
Hair
Neurons
Nerves
Which body system is responsible for the elimination of liquid and gaseous wastes?
nervous
excretory
skeletal
digestive
What are two functions performed by the skeletal system?
protects the body
supports the body
produces waste products
excretes waste products
transports oxygen throughout the body
controls and coordinates all body activities
The major organs of the respiratory system are ______________________________.
liver, stomach, and pancreas
muscles, bones, and skull
trachea, lungs, and diaphragm
heart, blood, and vena cava
What are the main types of muscular tissue?
veins, arteries, and heart
kidneys, bladder, and urethra
skeletal, cardiac, and smooth
lungs and diapraghm
How do the lungs function within the excretory system?
the lungs exchange oxygen and carbon monoxide
the lungs absorb carbon dioxide from the air
the lungs help to release carbon dioxide while absorbing nutrients
the lungs exchange oxygen and carbon dioxide and release waste products in cells
White blood cells help the body by fighting disease, which part of the skeletal system produces blood cells?
Muscular
Skeletal
Nervous
Integumentary
The central nervous system is made up of the brain and the _________.
Heart
Nerves
Spinal Cord
Motor neurons
Which type of neuron carries messages between the sensory and the motor?