Answer:
B. They are both necessary for organisms to survive
Explanation:
organisms rely on both living and non-living factors to survive.
Ex: An orange tree needs worms, birds, and insects to keep it alive and to plant more trees and it needs dirt and water.
I honestly think that it would be D. Not 100% sure but it just makes sense
The postsynaptic potential is the membrane potential, which takes place in the neuron present post synapsis (after the chemical synapse). The presynaptic neuron releases neurotransmitter, which causes the firing in the postsynaptic neurons.
The firing of the post synaptic neuron depends on the excitation and inhibition inputs received from the presynaptic neuron. The firing is the resultant of the summation of excitatory and inhibitory potential. In case, the excitatory potential is greater than inhibitory potential, the post synaptic neuron would be excited. in case, inhibitory potential is greater than excitatory potential, then the post synaptic neuron would be inhibited.
Hence, the correct answer is option d.
C. Coral reefs
good luck :)
it can effect them in many different ways