In vertebrates, the ______ nervous system is composed of the brain and the spinal cord.
A. peripheral
B. central
C. somatic
D. autonomic
E. sympathetic
B. central
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Terry takes the body of the snakelike organism and slices it open along its dorsal side. If it is a hagfish, what should Terry see?
A) a well-developed series of bony vertebrae surrounding the spinal cord B) a well-developed series of cartilaginous vertebrae surrounding the spinal cord C) a tube of cartilage (surrounding the notochord) with dorsal projections on both sides of the spinal cord D) a notochord, located underneath the spinal cord
Thomas Bell and his colleagues studied bacterial species richness in isolated European beech treehole basins
("islands"). Their data showed that ______.
a. island size affects beech tree populations b. the number of bacterial species decreases with treehole volume c. the number of bacterial species increases with treehole volume d. large beech trees support higher bacteria populations than small beech trees e. the species-area effects on bacterial species differs from species-area effects on animal and plant populations on true islands
Compare and contrast the sensory neurons, motor neurons, and interneurons
What will be an ideal response?
What structure does light pass through after leaving the condenser in a compound light microscope?
A) ocular lens B) objective lens C) specimen D) illuminator