They are called <span>nucleotides. </span>
Energy flows through an ecosystem and cannot be recycled.
<span>helicase<span>DNA helicase is the enzyme that unwinds the DNA double helix by breaking the hydrogen bonds down the center of the strand. It begins at a site called the origin of replication, and it creates a replication fork by separating the two sides of the parental DNA.<em /></span></span>
I would say the answer is A
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)
