The type of neuronal circuit that spreads information from one presynaptic neuron to several postsynaptic neurons is a circuit.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products