The various components of an arthropod's nervous system are:
A dorsal brain present at the head end
A bundle of nerves which helps in coordination of movements and sensory actions.
Ventral nerve cords are resent from the brain to the rear end.
Two cords are joined by parallel commissures.
They also have segmental ganglia, and subesophagal ganglia.
The overuse of fertilizers and over-enrichment with nutrients will lead to increasing the amount of phosphorus concentration in agricultural runoff.
I think the answer is
true
hope i helped
Yes when a tadpole "evolves" it will grow into something different