Answer:
B- Cells continue to grow and divide in an uncontrolled manner.
Explanation:
Some proto-oncogenes provide signals that lead to cell division, when mutated, will call uncontrolled cell division.
Answer:
synapse is the connection of the axons of one neuron and the dendrites of another, myelin is the substance that protects the grey matter from the bony surface of the head for example, nucleus of a neuron is the main part of the nersous cell and neurotransmiters are the substances that make synapses posible ( and sometimes efficient)
Answer:
the outer planets are primarily composed of gasses. also the outer planets are considerably bigger than the inner ones