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Questions and Answers
What is the main method of communication between cells in a large organism?
What is the main method of communication between cells in a large organism?
- Chemical signals (correct)
- Mechanical signals
- Visual signals
- Electrical signals
Where can receptors for chemical signals be located in a cell?
Where can receptors for chemical signals be located in a cell?
- Only in the endoplasmic reticulum
- Only inside the nucleus
- On the cell membrane or inside the cytoplasm (correct)
- Only in the mitochondria
What happens if neurons do not receive enough energy?
What happens if neurons do not receive enough energy?
- They shrink in size
- They multiply rapidly
- They may fail to function and die (correct)
- They become more active
Which cellular connections allow small molecules carrying chemical messages to pass directly from one cell to another?
Which cellular connections allow small molecules carrying chemical messages to pass directly from one cell to another?
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How are messages generally carried rapidly from one part of the body to another in many animals?
How are messages generally carried rapidly from one part of the body to another in many animals?
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