30. Which of the following statements is NOT a cell modification that leads to adaptation?
a. Plant cells have a large amounts of the chloroplast which allows the cell to undergo photosynthesis.
b. Muscle cells are made up primarily of a pair of special proteins called actin and myosin which allows muscle to contract.
c. Nerve cells have specialized structure called dendrites which receive an electrical signal from another neuron and an axon which transmits the electrical signal to another neuron.
