ATMOSPHERE LAYERS: Troposphere, Stratosphere, Mesosphere and Thermosphere
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Explanation:
most cellular activities take place in the cytoplasm such as many metoblic pathways including glycolysis and processes such as cell division.
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d. ligand-gated ion channel
Explanation:
When a neurotransmitter released from the pre-synaptic neuron binds to a ligand-gated ion channel on the post-synaptic neuron, that neuron depolarizes and fires.
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It does't account for migrations or movements of nomadic animals
Explanation: