The <span>corpus callosum connects the two hemispheres.
Hope that helped you!</span>
Answer: Excretory
Explanation: My grandpa went through this recently and I had to learn all about it. :(
I'm assuming that you want us to tell you what organism does these things. So it would be a plant.
Answer: The food chain
Explanation: It is important to have a large number of producers and herbivores in an ecosystem because of the food chain. Without producers the herbivores would have no food. and without the herbivors the carnivores would have no food.
The doctor is checking for pain sensation. The doctor starts at the foot to check for peripheral nerves, sensory ganglia, lateral spinothalamatic, tract of the spinal cord, brainstem, thalamus, and sensory cortex. <span> </span>