Questions and Answers
What is a common characteristic shared by all living organisms according to the text?
Ability to produce and use energy
Which characteristic distinguishes living from nonliving organisms as mentioned in the text?
Ability to reproduce and develop
What characteristic allows organisms to adapt to changes in their environment according to the text?
Ability to learn from experience
What is a key characteristic that helps living organisms respond to their environment based on the text?
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What is the smallest unit of life in multicellular organisms?
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Which group of cells performs a specific function?
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What is composed of millions of nerve cells that transmit signals to all parts of the body?
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Which organ receives signals from nerves?
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In which system does the brain send messages to the spinal cord?
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What term is used to describe an individual that is a collection of multiple organ systems?
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Study Notes
Characteristics of Living Organisms
- All living organisms share the characteristic of being able to respond to their environment.
- The ability to respond to stimuli distinguishes living from nonliving organisms.
- Organisms adapt to changes in their environment through their ability to respond to stimuli.
Cellular Structure
- The smallest unit of life in multicellular organisms is the cell.
- A group of cells that perform a specific function is called a tissue.
Nervous System
- The nervous system is composed of millions of nerve cells that transmit signals to all parts of the body.
- The brain receives signals from nerves and sends messages to the spinal cord through the central nervous system.
- The brain sends messages to the spinal cord through the spinal cord system.
Organism Composition
- An individual that is a collection of multiple organ systems is called an organism.
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