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- 1. Multiple Choice
As organisms get more complex, cells become specialized to perform specific functions in the body. What is the function for the cell shown?
contract and shorten movement
provide coverage and protection
carry impulses around the body
connects parts together
- 2. Multiple Choice
The human brain is made of 100 billion neurons. Each neuron has a nucleus that contains genes. Many neurons bind together to form a nerve.
tissue
system
organ
cell
- 3. Multiple Choice
Which cell relays messages from one tissue to another?
Red Blood Cell-RBC
White Blood Cell-WBC
Neuron
Tissue
- 4. Multiple Choice
Neurons are primarily composed of this cell?
heart
skin
brain
skull
- 5. Multiple Choice
What level of structure is represented by the diagram?
organ
organ system
cell
tissue
- 6. Multiple Choice
The function of sneezing is to expel mucus containing foreign particles from the nasal cavity. A person sneezes when foreign particles pass through the nasal hair which triggers the release of chemical that activates body system causing sneezing. What body part is activated?
circulatory system
digestive system
nervous system
excretory system
- 7. Multiple Choice
Humans feel hungry when their empty stomachs contract and glucose levels in their body drop. Both of the situations stimulate neurons that send messages to the brain which are interpreted as hunger. What body systems are involved in this process as described?
digestive, muscular, integumentary, and respiratory
digestive, excretory, integumentary, and skeletal
circulatory, excretory, nervous, and skeletal
circulatory, digestive, muscular, and nervous
- 8. Multiple Choice
Which system is responsible for the overall control of all the internal processes that occur in the body?
muscular system
nervous system
digestive system
skeletal system
- 9. Multiple Choice
The urinary bladder is a muscular organ of the excretory system that collects urine excreted by the kidney. How does the nervous system help the urinary system in excretion?
it signals the urinary bladder to absorb more water from the urine.
It signals the urinary system to collect waste from the different parts of the body.
It signals the urinary bladder to hold and release urine at appropriate times.
It signals the urinary bladder to allow more urine to flow from the ureters.
- 10. Multiple Choice
The brain has 3 major sections that send and receive signals to control all the activities that keep a person functioning efficiently. Which major section controls breathing and heart beat?
cerebellum
cerebrum
brain stem
cortex
- 11. Multiple Choice
Which 2 body systems interact and initiate movement?
muscular and nervous system
skeletal and muscular system
respiratory and nervous system
circulatory and nervous system
- 12. Multiple Choice
The muscles in the wall of the blood vessels contract or relax to vary the blood flow. Which body system regulates the contraction and relaxation of the muscles?
digestive system
excretory system
skeletal system
nervous system
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