The branch-like structures on the heads of neurons that receive signals from other neurons are called .

The branch-like structures on the heads of neurons that receive signals from other neurons are called dendrites.

Explanation:

Dendrites are the branched extensions that leave the body of a neuron and by which it receives nerve impulses from other neurons through synapses. Dendrites allow the transmission and uptake of different substances known as neurotransmitters, which are the basis of the biochemical mechanism that allows the transmission of signals.

i would go with b

cytokinesis occurs after telophase so that eliminates d

and the entire reason for cytokinesis is for cellular reproduction