Answer:
Calcium channels.
Explanation:
The arrival of action potential at the presynaptic neuron, cause the opening of Ca+ channels, at the presynpatic neuron membranes. This leads to influx of Ca+ . The latter caused the Acetycholine contained vesicles in the presynaptic neuron to migrate to the tip of the presynaptic neurons, and fused with the neuronal membrane to empty their contents into the synaptic cleft.
Answer:
1. Partially Permeable Cell Membrane
2. Water/Carbon Dioxide/Oxygen/Lipids/Bacteria
3. raw materials for respiration/waste/photosynthesis
Explanation:
Hope this helps and good luck on your studies! :)
Answer:
Construction of Fish Ladders to provide a mechanism for migrating species to move upstream.
Explanation:
So that way, the fish and other creatures can continue living the way they were.
Answer:
I m still awake till now , lol
Explanation:
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