E. o matter is used in ecosystems; energy is not
2. which of the following terms encompasses all of the others?
a. heterotrophs
b. herbivores
carnivores
d. o primary consumers
e. o secondary consumers
3. what is the most important role of photosynthetic organisms in an ecosyster

If you were given a map of the sensory cortex in the postcentral gyrus of the cerebrum, do you think the map would have more “space” devoted to the regions of the body that have the highest density of sensory receptors, or the regions of the body that have the lowest density of sensory receptors? explain.