All of these are factors but A. Seems to be the best answer
This will affect signal transduction at the synapse by fewer ion channels will open in the postsynaptic. The correct answer is D.
The organism is the highest level of hiearchy
I think its 60 years old idk though
Answer:
Yes, for instance...
Picking up trash can be a big help, less pollution for us!
Less factories
Less smokers to prevent air pollution once again.
For the virus right now, wearing mask can help a lot.
Staying quarantined also can help make a difference.
I hope this helps.