Answer:
gap junctions synapses neurons microtubules.
Explanation:
Answer:D. A change to one amino acid in a protein may cause a significant change in phenotype.
C...both sperm and egg genetic material can be rearranged during their generation (meiosis).
Stem cells are what allow planaria to grow and regenerate as the stem cells can change into any of the cells that make up the planaria.
Answer:
Geologists have hypothesized that the movement of tectonic plates is related to convection currents in the earth's mantle. Convection currents describe the rising, spread, and sinking of gas, liquid, or molten material caused by the application of heat.