What are the smallest units or parts of living things?
Body Systems

Flashcard
•
Biology
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Cells are the body's building blocks.
2.
FLASHCARD QUESTION
Front
What is the main function of the respiratory system?
Back
The main function of the respiratory system is to take in oxygen and exhale waste like carbon dioxide.
3.
FLASHCARD QUESTION
Front
Which system senses pain and sends signals to the brain and spinal cord?
Back
The nervous system.
4.
FLASHCARD QUESTION
Front
What system supplies the body with oxygen and rids it of carbon dioxide?
Back
The respiratory system.
5.
FLASHCARD QUESTION
Front
What system does the heart pump blood through?
Back
The circulatory system.
6.
FLASHCARD QUESTION
Front
What is the primary function of the circulatory system?
Back
To transport blood, nutrients, and oxygen throughout the body.
7.
FLASHCARD QUESTION
Front
What are tissues?
Back
Groups of similar cells that perform a specific function.
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