- Information in the environment that causes an animal to react is (1 point)a control.
an interneuron.
a response.
a stimulus.
- The more complex an animal’s response to a stimulus, the more likely it is that the animal has (1 point)
many sensory neurons.
many motor neurons.
many interneurons.
many stimuli.
- Of the following choices, the simplest form of nervous system is a (1 point)
ganglion.
nerve net.
nerve cord.
brain.
- Which of the following invertebrates has cerebral ganglia that are organized into a brain? (1 point)
sea star
earthworm
coral
octopu
a response.
a stimulus.
many motor neurons.
many interneurons.
many stimuli.
nerve net.
nerve cord.
brain.
earthworm
coral
octopu