Coordination Flashcards
1
Q
what is homeostasis?
A
the mantanence of constant internal enviroment.
2
Q
what is cell signalling?
A
communication of cells as one cell releases a chemical which has a effect on a target cell.
3
Q
what does cell signalling allow cells to do?
A
- transfer signals locally. The signal is using a neurotransmitter.
- transfer signals across large distances using hormones.
4
Q
do plants have nervous systems?
A
no
