When the gill-withdrawal reflex of the sea snail aplysia has been successfully conditioned to a stimulus such as a squirt of water from a waterpik, observed changes in the neural circuit include: an increase in the number of synapses. a decrease in the number of synapses. cell death. neuron migration?

An increase in the number of synapses will happen when the gill-withdrawal reflex of the sea snail Aplysia has been successfully conditioned to a stimulus such as a squirt of water from a WaterPik, observed changes in the neural circuit. The term conditioning refers to learning associations between environmental events and behavioral responses.

layer 3 is younger than layer 6.

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.