Nina is learning about plants in school. Her teacher gives her group a stack of cards that list things that plants might need to
make their own food. Written on the cards are the words “water,” “soil,” “sunlight,” and “air.” One card does not belong. Which of the cards should Nina’s group take out of the pile?
In order for an impulse to cross the synaptic gap between
the neurons, the impulse must be converted into a chemical signal as this will
allow it to exert effects and to be able to travel in distances such as having
to cross the synaptic gap between the neurons.
