I really don't know how to help you here, bud.
They are similar in the sense that they are multicellular , lack cell walls , and produce sperm cells. However they are unique as they lack true tissues and organs and have no body symmetry.
Answer:
a
Explanation:
Once in the synapse, it must be quickly removed or chemically inactivated in order to prevent constant stimulation of the post-synaptic cell and an excessive firing of action potentials.
