Where does the impulse enter a neuron (a) Cell body
(b) Dendrite
(c) Axon
(d) Synapse

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

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).

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

the correct answer is sex-linked recessive.

i just took the test