REVIEW & REHEARSE 23 NERVOUS and MOTOR SYSTEMS
REVIEW & REHEARSE 23 NERVOUS and MOTOR SYSTEMS
Q
Animal nervous systems have several principal features, which include all of the following except:
- a) they coordinate the organism’s long-
term growth and development. - b) they receive input from the world around the organism.
- c) they initiate responses to the information they receive from the world, when necessary.
- d) they process the information from the world that an organism receives.
- e) All of the above are principal features of animal nervous systems.
Which of the following statements about plants and nervous systems is correct?
- a) Plants can feel pain in their trunks and stems, where they have neurons, but not in their leaves.
- b) Plants can feel pain in their leaves, where they have neurons, but not in their trunks or stems.
- c) Plants can feel pain because they have a nervous system that extends throughout their tissues.
- d) Plants can feel pain in their trunks, where they have neurons, but not in their stems or leaves.
- e) Plants cannot feel pain, because they do not have nervous systems.
What is the difference between a nerve and a neuron?
- a) A nerve is a bundle of neurons, whereas a neuron is a single cell.
- b) Nerves have synapses with muscle cells, whereas neurons have synapses with other neurons.
- c) Nerves have dendrites that can be modified into sensory cells, whereas neurons do not have dendrites.
- d) “Nerve” is the name given to nervous system cells specialized for receiving and transmitting information, whereas “neuron” describes a nerve cell in humans.
- e) There is no difference. They are different words for the same structure.
