Which process involves the fusion of male and female gametes resulting in the formation of a zygote?

The neuromuscular junction is a type of synapse where neuronal signals from the brain or spinal cord interact with skeletal muscle fibers, causing them to contract.

The activation of many muscle fibers together causes muscles to contract, which in turn can produce movement.

Choice B is incorrect because binding acetylcholine to nAChRs is a process that occurs at the neuromuscular junction, but it is not the function of the neuromuscular junction itself.

Choice C is incorrect because depolarizing the muscle cell membrane is a result of the function of the neuromuscular junction, but it is not the function itself.

Choice D is incorrect because activating voltage-gated sodium channels on the muscle membrane is a result of the function of the neuromuscular junction, but it is not the function itself.

Viruses use the host’s replication processes to produce progeny virus particles.

Viruses are obligate intracellular parasites, meaning that they require a host cell to replicate.

They hijack the host cell’s machinery to produce new virus particles.

Choice B is incorrect because viruses do not divide inside the host cell.

Instead, they use the host cell’s machinery to produce new virus particles.

Choice C is incorrect because viruses do not have their own replication processes and rely on the host cell for replication.

Choice D is incorrect because while some viruses may destroy the host cell during replication, this is not always the case and is not the primary relationship between viruses and their host cells during replication.