The answer is true because the ozone layer traps radiation which is heat and distributes it evenly across earth
        
                    
             
        
        
        
Answer:
Oh wow thats cool...... you can just look it up on the internet. There are the most amazing tricks and things on there.
 
        
             
        
        
        
It would be considered an opioid. 
 
        
                    
             
        
        
        
Answer:
Post-synaptic neurons after receiving correct ligands called as neurotransmitter in correct amount generates action potential. This action potential may be inhibitory or accelatory.
Explanation:
Postsynaptic neuron
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These are the neurons that is present after the gap called synapse. These neurons after receiving correct ligands called as neurotransmitter in correct amount generates action potential. This action potential may be inhibitory or accelatory.
There are number of neurotransmitter. These includes
GABA ergic: This neurotransmitter is often inhibitory.
glutamatergic: This neurotransmitter is often excitatory.
Adrenergic: This neurotransmitter releases norepinephrine.
Cholinergic: This neurotransmitter activates vertebrate neuromuscular junction.
 
        
             
        
        
        
Through my research I found matching questions with similar answers:
A) macrophages
 B) antigens
 C) antibodies
 D) lymph
The best answer to fill in the blank would be the third option C) Antibodies which in the name anti means against, so since the word anti is the same as against, its a battle between antibodies and invaders, so that's why its C).