These are four types of feathers found in birds. the structure of these feathers is most likely composed of
a. starch.
b. nucleic acids.
c. protein.
d. lipids

The unique structure of the neuron is dedicated to the efficient and rapid transmission of neural signals. the relationship between neurons, the spinal cord, and the brain constitutes an elaborate communication system throughout the human body. all but one of the functions listed below are a result of this interaction.