Answer: i think its B or C
The correct answer is that the yolk provides nutrients for the embryo. Hope this helps.
Answer: they are not living things
Explanation: The virus needs a living cell to multiply because on they're own they can't do anything.
<span>Botulinum toxin does not bind to receptors presemt at the axon terminal in order to enter the neuron. It is a neurotoxin protein produced by Clostridium botulinum which is a bacterium. It prevents the release of neurotransmitter from axon endings that results to flaccid paralysis.</span>
