Answer:
I do not understand why this happens.
Answer:
Biotic:
- Bear
- Moose
- Trees
- Eagle
- Bird
- Fish
- Ducks
- Otter
- Ferns
- Grass
- Butterfly
Abiotic:
Explanation:
Remember that biotic factors are living organisms while abiotic factors are things that are non living organisms.
Hope this helps.
The direction of the reaction.
Answer:
Key points
Neurons communicate with one another at junctions called synapses. At a synapse, one neuron sends a message to a target neuron—another cell.
Most synapses are chemical; these synapses communicate using chemical messengers. Other synapses are electrical; in these synapses, ions flow directly between cells.
At a chemical synapse, an action potential triggers the presynaptic neuron to release neurotransmitters. These molecules bind to receptors on the postsynaptic cell and make it more or less likely to fire an action potential.
Explanation:
1. The central nervous system including brain and spinal cord.
2. The peripheral nervous system including nerves coming out from the brain and spinal cord, i.e., cranial nerves and spinal nerves.
3. The autonomic nervous system including sympathetic nervous system and parasympathetic nervous system.
