acer japonica,  acer rubrum, and  acer saccharum  are a)three families of maple trees. b)three different names for the same maple tree. c)three species of maple trees, all in the same genus. d)three varieties of maple trees, all in the same species.

When organisms are classified ,they are given a two part name

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.

Explain the significance of the increased cell specialization of the volvocine line