In alternation of generations, what is the diploid stage of a plant that follows fertilization called? hints

What initially causes a nerve impulse? release of enzymes out of the neuron movement of chemicals into the dendrites of the neuron pathogens attacking the dendrites of the neuron red blood cells bathing the neuron

Which type of stimulus do mechanoreceptors detect? sound pain heat light

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.