True because they are used to this system
Answer:
These are found in the <em>submucosal</em><em> </em><em>plexus</em>
Explanation:
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Answer:
A: Plant Cells
Explanation:
the cell membrane is found in all living species, including plants.
Answer:
D. Each receptor triggers one particular type of cell behavior, for example, activating gene expression.
Explanation:
- Each extracellular signal molecule can induce different responses depending on the target cell.
- Lipophilic receptors diffuse or carried across the cell's plasma membrane and bind to an intracellular receptor. For example steroid hormones are transported via carrier proteins.
- Some signalling molecules only induce response from specific cells.
- A single receptor can be activated by different signal molecules.
