Answer:
The correct answer is d) travels in the blood and has an effect on a remote tissue.
Explanation:
Hormones are released by the endocrine glands that are also known as ductless glands. These hormones circulate in the body by the help of blood because they are directly released in the blood which is needed for them to affect the distant target organ or tissue.
Neurotransmitter is different from hormones as they are released by the presynaptic nerve terminal of neurons in the space between two neurons called synaptic cleft from where it moves to the next neuron.
Therefore neurotransmitter is released from one neuron and received by another neuron. It is not directly released in blood to affect a remote tissue. So the right answer is d.
Dialysis is a passive process that favors the transport of small molecules across a semipermeable membrane.
Being hungry or having a dry mouth is an instinctive behavior in humans. 2 Which mealworm behaviors were reflexes? Why? The ones where the mealworm was touched by feathers or metal pins were reflex behaviors, because they were a stimulus, and the mealworm had no control over its reaction.