It is important for newly developed neurons to form synapses with other neurons. which cells are most responsible for guiding the formation of these particular junctions? a)microglial cells b)satellite cells c)schwann cells d)astrocytes.

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

Which mechanism of transport takes place when solute particles move from a region of high concentration to a region of low concentration? active diffusion isotonic osmosis

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.